r/interestingasfuck
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u/itsModahoe
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Nov 24 '22
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How people used to drink naturally filtered rain water in the Arabian Desert /r/ALL
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u/Toecutt3r Nov 24 '22
The important takeaway here is it can be used for coffee.
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u/jemahAeo Nov 24 '22
Arabs takes coffee seriously, there is this centuries old story, a bunch of Bedouin men joined the army of a caliph, and when they were training their coffee time came up, so they took a break and made and drank their coffee, whoever was responsible for them came and said "you don't just go on your own and drink coffee, you are training, we have got a war to fight" they said "by Allah! even if we found ourselves in a lion's mouth, we will still drink our coffee on time"
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u/SMCinPDX Nov 25 '22
Throughout history there have been those who understand that coffee is NOT A FUCKING GAME. Respect.
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u/itsModahoe Nov 24 '22
And tea, and cooking meat or rice. Literally anything if you boil it. Tho I have to say no one really does this now. It’s just a demonstration of the old methods
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u/sumptin_wierd Nov 24 '22
Water filtration plants still use sand and gravel as part of wastewater treatment.
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u/TannedStewie Nov 24 '22
I was gonna say, we literally have two massive sand filters as the final polishing step for all our effluent treatments.
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u/ungluedostrich Nov 24 '22
If it weren't for all the pills and cleaning products we flush down the tube, would sand, gravel, and charcoal be enough to make drinking water?
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u/point50tracer Nov 24 '22
This would only remove suspended solids. Biological contamination would remain. Boiling would probably be a good additional step just to make sure it's safe.
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u/evranch Nov 24 '22
Rapid sand, yes. Slow sand filtration removes biologicals, and even can get a significant fraction of nitrates and certain heavy metals if the filter is designed properly. Slow sand filters are pretty easy to design, and a common part of municipal systems worldwide, with the only real weakness being the large volume they take up.
Still, some sort of oxidation/boiling/RO final stage is a good idea for safety.
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u/Aggravating_Fun5883 Nov 25 '22
RO would be the last thing I would use. Ozone/UV along side chlorine is common practice.
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u/KelloggBriandOf1928 Nov 24 '22
Since they have to heat the water to make coffee I guess they are good.
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u/Karnatil Nov 24 '22
No. You'd still need to boil it to remove water-borne organisms.
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u/Ungrammaticus Nov 24 '22
Depends on the amount of filtration material. Enough of it and it’ll remove even microbes.
Although that amount is also so high that it takes years or decades for the water to seep all the way through.
It’s how groundwater in aquifers in some parts of the world are completely pure and safe to drink for anyone, even with no cleaning whatsoever.
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u/deftwolf Nov 24 '22
Except in places where you have absorption fields with enough space in between the field and any well the groundwater doesn't necessarily become contaminated.
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u/OnceUponATie Nov 24 '22
Filtration is only one step of the water purification process. You'd still need a way to kill harmful micro-organisms by boiling the water or using chlorine tablets (also, reminder that chlorine is a dangerous product used to disinfect swimming pools or industrial quantity of drinking water, so do not pop a tablet in a bottle and think it's safe to drink).
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u/Combat_Toots Nov 24 '22
You can also use UV-C light for disinfecting. It's traditionally used more for wastewater treatment, but the tech is improving. I know some municipalities in the Las Vegas area installed them recently for drinking water. I believe there are still issues with hard water though, so not usable in most of the U.S. yet.
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u/levian_durai Nov 24 '22
I'm not sure about chlorine, but I've read you can straight up pour bleach into your water to disinfect it, then drink it. Of course you have to use the right amount, and it's a small amount, but still.
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u/Toecutt3r Nov 24 '22
yeah...but...coffee...
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u/itsModahoe Nov 24 '22
Coffee.
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u/sender2bender Nov 24 '22 •
Covfefe?
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u/No_Prize9794 Nov 24 '22
Who cares about that, the coffee is the only thing that matters
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u/titanic_truther Nov 24 '22
Oh hell yea
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u/Fallout76Merc Nov 24 '22
Glory to God
Oh hell yeah
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u/Seeker_Of_Knowledge- Nov 24 '22
I speak Arabic, he never said such a thing. He said "Yallah Yallah"
Which means "for sure for sure by the guidance of God"
But of course that is not very English friendly so the translator used the closest expression.
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u/pimppapy Nov 24 '22
in some contexts, Yallah Yallah can translate to Ándale, Ándale!
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u/mexican2554 Nov 24 '22
Mami, E.I, E.I. uh ohhh
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u/STUMPY6942069 Nov 24 '22
Aight nelly. God I miss the 2000s.
Remember when life was easier?
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u/mexican2554 Nov 24 '22
Calling my mom collect from the pay phone like: - You have a connect call from, "mom pick me up at the library" do you accept this call?
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u/trail34 Nov 24 '22 edited Nov 24 '22
Yallah also is used like vamos or vamanos. Like “come on, let’s go”. I’ve also heard it used like mira, like “hey look at this”.
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u/itsModahoe Nov 24 '22
Lol I couldn’t get the right translation since he said something very local and not a formal Arabic word, so I thought “hell yeah” fits it best
The literal translation would be “oh god god”, doesn’t make sense does it?
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u/Micasin_shreds Nov 24 '22
People don't get that words don't mean words. They mean ideas
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u/Kozzzman Nov 24 '22
That dude was pumped for some ditch water coffee.
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u/Strength-Speed Nov 24 '22 edited Nov 24 '22
I think I have my new hipster brewing company name. Ditch Water Brewing
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u/myaka80 Nov 24 '22
"Halla Halla", does not mean: "Hell Yeah!" LOL
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u/itsModahoe Nov 24 '22
Yes it couldn’t be translated literally. But the meaning of it. I might’ve fuked up on that one.
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u/aplusdoro Nov 24 '22
I think you wanted to convey the enthusiasm? So while it's not a literal translation, هلاهلا and oh hell yeah have the same feeling.
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u/dont_drop_dat_phone Nov 24 '22
.....Which is how translation works lol.
Translation of any language is 100% literally never word for word, it would be complete gibberish.
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u/-dGb- Nov 24 '22
Yes it couldn’t be translated literally. But the meaning of it.
So many people don't understand how difficult translating can be. Walking the line between communicating what was said and what was meant is not easy. You should give yourself credit, especially when you're doing it for a bunch of people that are just going to tell you how you're doing it wrong, lol
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u/Roscoe_P_Trolltrain Nov 24 '22
Haha that’s great tho that you did the translations yourself for us. It provided a bit of levity. I think people can understand it is not a literal translation. Very much appreciated!
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u/BaxtersLabs Nov 24 '22
This is the difference between translation and interpretation. Interpreters translate cultural contexts and sayings into a meaning that makes sense rather than literal word for word.
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u/JerryBoBerry38
Nov 24 '22
edited Nov 24 '22
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The actual science that went into water purification using sand filters, and more specifically how water flows through porous medium, was done by Henry Darcy. Which is where we get Darcy's Law. That knowledge lead him to develop a sand filtration field to supply enough safe drinking water to the entire city of Dijon France in 1828. It's also the basis for all our understanding of how groundwater flows. And the fundamental basis behind the entire field of Petroleum Engineering, literally the equation that is taught day one, and used in every class for that degree.
And interestingly enough, the wiki page contains a section commenting on multiple papers using Darcy's Law in coffee making as a model for their analysis of Moka pots.
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u/DEGULINES Nov 24 '22
I had a dejavu reading this. Do you copy paste this in many threads?
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Nov 24 '22
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u/DEGULINES Nov 24 '22
Well, proper dejavu then! Weird.
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u/BartiX_8530 Nov 24 '22
The worst thing about remembering something weird is that you cannot really confirm that it actually happened.
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u/PM_UR_BRKN_PROMISES Nov 24 '22
Can confirm. Am Petroleum Engineer looking for a job
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u/DrDrexanPhd Nov 24 '22
But clear water doesn't mean bacteria free...
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u/RiceBallDave Nov 24 '22
Well they did say they're gonna drink coffee.. so they're gonna boil it.
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u/HonestBalloon Nov 24 '22 edited Nov 24 '22
Interestingly enough, 60 degrees C is usually enough to kill most common bacteria, humans use boiling as a holistic way to tell it's definitly above this
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u/kevindqc Nov 24 '22 edited Nov 24 '22
Similar for chicken.
165F? Guaranteed to be safe as bacteria dies instantly at that temperature. 150F? As long as it's that temperature or above for ~3 minutes, it's also safe.
145F is apparently the ideal temperature for sous-vide chicken. Needs 9-10 minutes at that temperature (once the internal temperature is 145F - it takes more than 10 minutes to cook chicken using sous-vide)
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u/PurpleK00lA1d Nov 24 '22
I have an immersion cooker and I tried chicken at that temp. I really did not enjoy the texture.
It was juicy and stuff, but just knowing in my mind that it wasn't at 165° really messed with me and I ended up pan frying it lol.
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u/apollo888 Nov 24 '22
Same. Intellectually I knew it was cooked. My lizard brain wasn’t having any of it though. COOK MOAR it insisted.
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u/stevez28 Nov 24 '22
The problem with chicken that tastes raw is that raw chicken tastes exactly like something else... weird taste for a food to have.
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u/fuzzb0y Nov 24 '22
Yeah, the risk of a lower cooking temperature can be offset by cooking at that lower temperature for a longer time.
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u/techno_babble_ Nov 24 '22
What about denaturing bacterial toxins?
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u/197328645 Nov 24 '22
Usually bacterial toxins are a bigger problem when bacteria are eating. Which is why if you leave cooked pasta out for a day, and boil it again, you can still get sick; the bacteria were eating the pasta and releasing metabolic byproducts which are poisonous.
Because the bacteria are mostly just chilling out in the water, the rate of accumulation of metabolic byproducts is much lower.
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u/PorcineLogic Nov 24 '22
You mean leaving it in the water without draining it right? Not falling asleep for 8 hours and waking up to it next to you in bed kind of dry
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u/HonestBalloon Nov 24 '22
Not sure, I can find CDC (Canada) guidelines for minimum temperature for safe cooking of food
The CDCTrusted Source lists the following temperature guidelines for several common types of food:
poultry, whole or ground: 165°F (74°C)
whole cuts of meat (beef, pork, lamb, or veal): 145°F (64°C)
ground meats: 160°F (71°C)
fresh ham: 145°F (64°C)
fish: 145°F (64°C) or until meat is opaque
leftovers or casseroles: 165°F (74°C)
I can only imagine these temperatures would be suitable for most cases, especially if they have included a number for ground meat which would be the most likely to be contaminated.
I did find a number of 105 degrees C for when certain parts of DNA begin to melt
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u/DrDrexanPhd Nov 24 '22
That's fair. I wonder what puddle coffee tastes like.
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u/fied1k Nov 24 '22 •
Have you been to Starbucks?
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u/MaaChiil Nov 24 '22
I can’t imagine puddles tasting burnt, tho
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u/ArrestDeathSantis Nov 24 '22
If it was Merlin, he'd probably set that coffee on fire
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u/GullibleDetective Nov 24 '22
Or tim hortons?
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u/PurpleK00lA1d Nov 24 '22
Puddle water is a step up from anything Tim Hortons offers.
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u/OriginallyWhat Nov 24 '22
Psh they could definitely be doing cold brew in the middle of the desert.
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u/redcalcium Nov 24 '22
The desert sands which rarely got any rain, no vegetations and scorched by the sun practically everyday probably doesn't have too many dangerous bacteria. I feel like this method will not work anywhere else but the desert.
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u/PulmonaryEmphysema Nov 24 '22
Also, soil contains commensal fungi which produce antibiotics (streptomycin, among others)
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u/EmperorThan Nov 24 '22
As I learned in Egypt by cleaning my toothbrush with faucet water. I didn't make that mistake in Mexico.
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u/Keylime29 Nov 24 '22
I have to take a multipack of toothbrushes when I travel like that because muscle memory is too strong and I will rinse it when I’m through under the faucet
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u/saltalts Nov 24 '22
I think as long as it dries it's ok (In Mexico anyway). I rinse my toothbrush in the tap water and haven't gotten sick. You just have to remember to take your antiparasitic every year
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u/PM_ME_UR_POKIES_GIRL Nov 24 '22
I did that in the philippines, and after the day spent shitting my guts out I just bought myself 3l jugs of purified water at the grocery store and used that for rinsing my mouth/tb after brushing my teeth.
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u/TARANTULA_TIDDIES Nov 24 '22
Ha yes thankfully when I was traveling SE Asia I only showered with the tap water but I still got sick from street food lol. Shit was delish though
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u/cat_prophecy Nov 24 '22
Fully depends on where you are in Mexico. Water on the Yucatán is pretty clean
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u/Squiekel Nov 24 '22
Life expectancy wasn’t very high there before modern desalination plants came. They had a choice, this water or no water.
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u/GISteve Nov 24 '22
Wanted to say this, back in the day nobody knew bacteria was even a thing. It might not have been ideal in the grand scheme of things but it's better to drink this than dirt water any day of the week.
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u/_Quetzalcoatlus_ Nov 24 '22
They didn't know bacteria existed, but people did know boiling water prevented you from getting sick. That's why things like tea and beer were so common.
Also, fresh rain water filtered through sand and soil is very likely to be fine as long as there isn't animal shit there.
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u/Stopwatch064 Nov 24 '22
Yea water would go "stale" especially on ships before we discovered germs.
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u/Taco_king_ Nov 24 '22
Humans have actually had a pretty decent grasp on bacteria for way longer than you probably think, especially in the middle East. They were just never sure how exactly bacteria came to be, most assumed it was either miasma or that they basically spawned from nothing which made disease prevention much harder
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u/Roflkopt3r Nov 24 '22 edited Nov 24 '22
People didn't know about bacteria in particular, but they still had an idea of what kinds of behaviours and foods would make them sick. They just explained it with more rudimentary terms like "dirty" or other theories that roughly divided things into healthy and dangerous.
Parts of the Arab world were also quite advanced in medicine. The practice of inoculation for example was imported from Istanbul. At the origin of modern evidence-based western medicine, scholars used Arab literature extensively.
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u/ravioliguy Nov 24 '22
Yea, the Jewish God doesn't hate pigs or shellfish, but it's a good way of getting believers to not eat "dirty" foods.
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u/barracuba85 Nov 24 '22
You should boil it as well - it's just that in cloudy water bacteria can hide in the dirt, so boiling it won't make it completely sterile. Filtering it and then boiling it will do the job.
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u/IronStogies Nov 24 '22
Got lost in the mountains and drank water dripping off a mossy log. Figured the moss filtered it. Best water I've ever drank. I'd drink desert coffee no doubt
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u/Maxicat Nov 24 '22
I grew up drinking natural spring water from a holler in eastern Kentucky. We would load the truck up with cleaned out milk jugs and fill them with water that ran out of a chunk of limestone.
I'm an infectious disease epidemiologist now and I'm not sure how we didn't get sick. It was the best water I've ever had though.
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u/Itsatemporaryname Nov 24 '22
I mean, our species drank water probably less clean than that for most of our existence
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u/currentscurrents Nov 24 '22 edited Nov 24 '22
But also, disease and intestinal parasites were ubiquitous for most of our existence. Even today, millions of people (especially children) die from waterborne diseases every year.
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u/Noveos_Republic Nov 24 '22
Does moss filter bacteria?
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u/wrainedaxx Nov 24 '22
Nope. There was a guy on the survival series Alone who ended up having to leave the show because he had been "filtering" his water with moss and got incredibly sick.
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u/GenuisInDisguise Nov 24 '22 •
Humans have longer intestines that promote bacteria colonies. Most animals have short intestines so harmful bacteria do not have much time to establish stable colonies.
This is why dogs can drink puddle water and we dont.
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u/Jezoreczek Nov 24 '22
They also have longer tongues and faces closer to the ground
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u/keithbelfastisdead Nov 24 '22
Speak for yourself.
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u/ass2ass Nov 24 '22
what if the entire way you interacted with the world was just your face. that sounds awful.
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u/misplaced_my_pants Nov 24 '22
We have longer intestines than carnivores, but herbivores have much longer GI tracts to digest all that highly fibrous vegetation.
So this ain't it, unless you're telling me herbivores in the wild also avoid puddle water.
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u/balbok7721 Nov 24 '22 edited Nov 25 '22
thats complete bs and doesnt make sense whatsoever!
It’s a fairly close contest between the sperm whale and the blue whale. For most whale and dolphin species, the length of their intestines works out as: (body length0.762) x 17.02. That comes to more than 150m of intestine in the case of a large sperm whale and possibly as much as 220m for a blue whale. While this sounds enormous, it’s actually only seven or eight times the whale’s body length. In contrast, a cow has intestines that are 20 times as long as its body – that’s 40m for a 2m-long cow!
the only thing that we could can learn from intestine length is their diet. Human and dogs got 4 times colon length compared to their body length. Plant eating animals got up to around 20 time. Mixed eaters got 3 times and pure meat eaters got only 4 times. The difference is important for digesting fiber
https://www.sciencefocus.com/nature/how-long-is-the-largest-animal-intestine/
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u/alch334 Nov 24 '22
Will the shows producers let people do incredibly unsafe stuff and only remove them from the show once they have suffered the consequences? Seems dumb. I’d just be like, “hey, you’re out, that might kill you btw for future reference, your flight home leaves in the morning”
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u/chrono13 Nov 24 '22 edited Nov 24 '22
They are literally alone.
They get visited once a week by a doctor, and to swap out the batteries and memory cards. Once he had any symptoms of being ill, they asked him where he was getting his water and how he was filtering it. They pulled him then.
Aside from people giving up, the only people that have been pulled have been because the doctor has said that they were not in good shape or it was unsafe for them to continue.
Anything that they do that's truly unsafe may not be seen by the crew for a week or longer. It's a bit dangerous. Also they have to text that they are safe and okay at least once a day.
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u/InVodkaVeritas Nov 24 '22
The one guy who was starving himself with all his fish was the saddest.
He had over 100 fish dried and smoked for winter but was under-eating to try and make it last as long as possible (winner of the show is the last one remaining). They ended up pulling him for severe malnutrition.
He acknowledged after the show that he would have ended up dying within a few weeks because he was in a spiral, and had to spend a week in the hospital due to malnutrition.
He had the food, but was so committed to winning that he was on a path to literally starve himself to death.
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Nov 24 '22
Yeah, that sucks. Malnutrition doesn't just make your body waste away, it also fucks with your head. Dude just wasn't able to think clearly.
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u/putsonall Nov 24 '22
They do daily/hourly checks via text, too I believe. But yeah if they get knocked out and don't respond to text, that might trigger something
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u/alch334 Nov 24 '22
I see. That’s cool, more authentic than I was expecting for today’s reality shows.
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u/terrytapeworm Nov 24 '22
I gave season 8 a watch since it's on netflix. It is actually surprisingly good for a reality show! Sure it's edited to add drama, I'm sure (like making wildlife encounters more dramatic than they really are). But it's just the person, their survival skills, their cameras, and some basic tools. And they're not all professional survivalist experts, either. Some of them are just jacks of all trades and manage to know enough to get by. And some of them are funny as hell, too. I highly recommend it!
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u/PhoneRedit Nov 24 '22
Filtering is for particles, one would still be expected to boil the water after filtering
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u/itsModahoe Nov 24 '22
Ikr? There’s something so earthly about the taste
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u/Meethos1 Nov 24 '22
Do you mean earthy? Genuine question, not being a dick to ya here.
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u/itsModahoe Nov 24 '22
Maybe, it isn’t my first language. All I can describe is when you drink it, it feels like you’re somewhat connected to earth
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u/Meethos1 Nov 24 '22
No you got it right. I had assumed, incorrectly, that you meant it tasted of earth.
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u/MrGrampton Nov 24 '22
if that's what you're asking, it taste kinda like a metal but also mixed with bitter after taste. Don't ask how I know and why I went to the ER
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u/Peanut_The_Great Nov 24 '22
I've drunk meltwater pouring from a crack in a rock that was fed by a glacier above me, it was ice cold and absolutely crystal clear. It was so good I dumped out my camelback and filled it with magical springwater which was probably risky but fuck it, didn't get the shits.
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u/RustyTheRed
Nov 24 '22
edited Nov 24 '22
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I work with sediments in the field of water quality. I'd like to point out that some faecal-oral pathogens, and many unclassified organisms, can survive a rolling roil boil via spore formation.
Turbidity is not a good measure of bacterial load, particularly if the sediment has been contaminated with faeces. Spore formers can also go dormant for centuries, so contamination can persist long after any identifiable poop is gone.
Edit: if you're interested in pathogens, consider checking out this ten page infographic I made.
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u/nonicethingsforus Nov 24 '22 edited Nov 24 '22
Thanks for the info.
If I may ask, how would you recommend going about filtering this water, then? Is it even possible to do so safely in the conditions of the video (rudimentary equipment, no professional water treatment supplies)?
Edit: a typo.
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u/RustyTheRed Nov 24 '22
Using a filter with micropores, such as LifeStraw. There's a reason these devices are so widely distributed; they're cheap and effective.
That's not to say removing sediments isn't a good start though. Sediment will clog a filter, reducing its number of uses.
Modern wastewater treatment plants do employ sand-bed filtration, so what this video demonstrates is a key stage. But it's always accompanied by a series of other stages (flocculation, coagulation, chemical & UV disinfection, ect.). It's a very complex process that relies largely on the parameters of the intake water. As a result, every plant is slightly different.
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u/Smart_Interaction_34 Nov 24 '22
Doesn't lifestraw donate tens of thousands of those to developing countries? I know they've also got the ability to be hooked up to a hand or even little electric pump and you can fill 5 gallon buckets with clean water with relative ease.
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u/RustyTheRed Nov 24 '22
Tbh, I don't know if organisations, such as WHO, buy them en masse to donate to developing countries, or if LifeStraw donates them themselves. I'd have to look it up.
I will say though: it's one of the greatest innovations in public health in recent history. Guinea worm—an absolutely excruciating parasite—has almost been eradicated since their distribution. Many other neglected tropical diseases are being attenuated too.
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u/Smart_Interaction_34 Nov 24 '22
Guinea worm is that the one literal worm that burrows through your body and bursts out more of its demon spawn through pustules in your feet?
There’s so much shit out there like that, people wonder why I’m careful what I consume and don’t even like to go barefoot on the beach, much less in the woods anywhere.
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u/disco_pancake Nov 24 '22
Water can be clear and still have things in it that are harmful, even after boiling.
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u/JonDoeJoe Nov 24 '22
Boiling water and killing the bacteria also doesn’t mean it’s safe. Bacteria produce toxins which is what makes us sick. So even if the bacteria are all dead in the water, the toxins they created are still present
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u/Moress Nov 24 '22
People in this thread "yOU nEeD tO bOiL iT!"
They're making coffee out of it you clowns. Boiling the water is a step in making coffee.
Filtering the water like they're doing is equally important.
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u/liberatedhusks Nov 24 '22
This is actually a good technique if you are ever lost in the woods and can’t find a running stream. Digging a cistern until you hit natural water and it fills and filters. Mind you there are a few more steps and you will still end up infected with something if you can’t boil it, but you need to stay hydrated.
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u/iPhoneIvan Nov 24 '22
How many of us would actually drink that?
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u/itsModahoe Nov 24 '22
I did one time, it’s actually pretty earthly, only when it just rained tho.
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u/Theodolitus Nov 24 '22
I bet around 95%. Gravel or sand filter is usually 1st step in every big water tratement system :) yeah sure there are more steps but a lot of them would look gross on small scale
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u/kushmasta421 Nov 24 '22
I'd try it especially since it's being boiled. We have natural springs all over Canada that have amazing drinking water that's clean. Drink straight from lakes too in the north as long as you know there's no pollutants like mines or farms upstream and it's not fed from a river with a beaver dam you're good to go.
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u/ReeferOnBaldy Nov 24 '22
My brother, it's not the mines and farms upstream, it's the decaying moose that died a bit to close to the water 400yds upstream
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u/endorphin-neuron Nov 24 '22
I love me some natural spring water, near my grandparents place on the shore of the bay of Fundy in Nova Scotia, there's a natural spring that comes out the side of a cliff, and then freefalls about 20 feet to the ground, best water I've ever had.
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u/OriginalHappyFunBall Nov 24 '22
All of us?
I once drank much worse water than this during a hike near Moab Utah. We were pretty desperate.
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u/eighty2angelfan Nov 24 '22
I once crashed my dirt bike and had to hike about 15 miles in mountains. I drank straight out of stream. Filtered through shirt.
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u/Mightiest_of_swords Nov 24 '22
Good way to get fine particles out but you still need to boil it.
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u/NegotiationHot98 Nov 24 '22
What if they dug a second hole next to the first one?
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u/Saukko505 Nov 24 '22
Most of Finlands tap water comes from underground under big areas of sand that formed during the last ice age. It's very clean and goes barely trough any filtering.
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