this post was submitted on 26 Jun 2023
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For context, I live in Hong Kong where most people drink tap water after boiling first. Some may install water filter but may still boil the water. Very few drink bottle water unless they're outside and too lazy to bring their own bottles.

Now, I'm researching whether I can drink tap water in Iceland (I'm going there in August), and while it looks like the answer is affirmative, almost no web article mention whether I need to boil the water first. People in Japan (a country I've visited a few times) also seems to be used to drink tap water directly without boiling.

The further I searched, the more it seems to me that in developed countries (like US, Canada and the above examples), tap water is safe to drink directly. Is that true? Do you drink tap water without boiling?

It sounds like a stupid question but I just can't believe what I saw. I think I experienced a cultural shock.

Edit: wow, thanks so much for the responses and sorry if I didnt reply to each one of you but I'll upvote as much as as I can. Never thought so many would reply and Lemmy is a really great community.

2nd Edit: So in conclusion, people from everywhere basically just drink water straight out of tap. And to my surprise, I checked the Water Supplies Department website and notice it asserts that tap water in Hong Kong is potable, like many well-developed countries and regions.

However, as the majority of Hong Kong people are living in high-rise buildings, a small amount of residual chlorine is maintained in the water to keep it free from bacterial infection during its journey in the distribution system. Therefore it is recommended to boil the water so that chlorine dissipates.

So, in short, I actually do not need to boil the water unless I hate chlorine smell and taste. But I guess I'll just continue this old habit/tradition as there's no harm in doing so.

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[โ€“] mokosai@lemmy.world 3 points 1 year ago

Yes, living in the US, it's safe to assume that any tap water is safe to drink without boiling. Sometimes it doesn't taste great because of mineral content, but it's safe with very few exceptions.

That's also been the case in any developed country that I have visited, including Iceland, Canada, pretty much all of Europe, Japan, Korea, Taiwan, Singapore, etc. There may be exceptions in all of those places, but in any large city in a developed country you can drink the tap water.

[โ€“] llama@midwest.social 3 points 1 year ago

Even better, I do not boil I run though and store in a Brita pitcher that should have had a filter change six months ago!

[โ€“] alp@sh.itjust.works 3 points 1 year ago

Venice: we filter it first via some cheal filters. It is very common to own a water mug with a filter embedded here.

Paris: directly from the tap water, though I don't like the taste.

[โ€“] Solemn@lemmy.dbzer0.com 3 points 1 year ago (1 children)

US, tap water is perfectly good to drink.

Having visited Iceland a few years ago, Iceland's tap water is the best tasting water I've ever had anywhere. Please take this opportunity to try it while you're there.

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[โ€“] kairo79@lemmy.ml 3 points 1 year ago

German Here, we have really good Tapwater here.

[โ€“] valdisnei@lemmy.ca 3 points 1 year ago

in Brazil de usually dont boil, but use a traditonal ceramic pot filter.

[โ€“] vacuumflower@vlemmy.net 3 points 1 year ago

Moscow, Russia. You can usually drink tap water in Moscow, but it's something unusually good for Russian bigger cities in general, and it's considered a good thing to boil it. Actually depends on local specifics and where the water comes from.

[โ€“] computerfan0@beehaw.org 2 points 1 year ago

Irish person here. Yes, I drink my tap water without boiling. My water comes from a well as I live in a rural area, but town/city water is drinkable too.

[โ€“] AceFuzzLord@lemm.ee 2 points 1 year ago

Where I live in the US, I don't have a need to boil water unless I'm cooking or making tea, and am safe drinking the tap water. I consider myself lucky.

[โ€“] Iconoclast@slrpnk.net 2 points 1 year ago

Austria, yes, water is fine like that I would even drink it in the shower without issue. What is an issue is this habit once made for a bad time in Egypt where I didnโ€˜t drink tap water (I was warned), but I mindlessly used it for brushing teeth and that probably ruined my last few days there.

[โ€“] tmpod@lemmy.pt 2 points 1 year ago

Yes. Here in Portugal, water is drinkable without boiling. Of course, water quality varies from region to region, but as it happens, where I live it's quite good :)

[โ€“] sajran@lemmy.ml 2 points 1 year ago

You can safely drink unboiled tapwater in most places in Poland.

[โ€“] gawron@lemmy.ml 2 points 1 year ago

Poland: water is always drinkable from the tap.

[โ€“] GreasyTengu@lemmy.world 2 points 1 year ago

Im from Newfoundland Canada. The city I live in has a water treatment facility and the tap water is perfectly fine to drink without any filtering or boiling.

Many smaller towns in my province only have natural water sources (lakes/ponds/streams) or wells for their water supply. The town I grew up in was like that up till about 2005-2006ish. It was pretty rare for us to have to boil water though, maybe 3 weeks out of the whole year, a neighboring town with a different water supply had to boil their water for most of the year so there was alot of variability.

[โ€“] Mishmash2000@lemmy.nz 2 points 1 year ago

New Zealand, Christchurch. We can drink straight out of the tap BUT it was chlorinated while our crappy infrastructure was being upgraded in recent years. Still is in some parts of the city I think? The actual water is from deep aquifers and was pristine and then it went through our dodgy wellheads which have since been upgraded.

[โ€“] Gray@lemmy.ca 2 points 1 year ago* (last edited 1 year ago) (1 children)

US/Canada here as well as someone that has visited most of western Europe (UK, France, Netherlands, Belgium, Luxembourg, Germany, Switzerland) and stayed in hostels - no boiling necessary in any of these places.

There's actually a pervasive myth I've encountered that hot tap water is dangerous and that one should only drink cold water. As far as I'm aware, this myth is due to an old setup for water systems that many western homes had before modern taps. The tap was separated into separate cold/hot faucets. The cold water came safely from the city, but the hot water came from tanks that were stored in people's attics. The water in these tanks sat stagnant and was therefore prone to rats and other creatures dying in it or bacteria building up. This is why still today, most British homes have separate hot/cold taps - to keep the "safe" water separate from the "dangerous" water. I occasionally encountered such taps in the US and I assume that's why my dad raised me to make sure the water was cold before drinking it. My father's understanding of this was clearly outdated though. I learned all of this from a Tom Scott video.

[โ€“] Rokil@sh.itjust.works 3 points 1 year ago* (last edited 1 year ago) (3 children)

I'm not sure that's a myth, everywhere I search I find reasons to not drink hot tap water:

  • The heated water may cause the plumbing to release harmful substances such as lead and nickel
  • Cold water is fresher. Hot water stays in the plumbing system for a longer period of time to get heated. Longer stagnation time in the system may cause higher bacterial levels
  • Hot water is exposed to more pollution sources since it passes through additional tanks or heating systems.
  • The level of microorganisms is higher in hot water plumbing

From this page

(PS : I'm talking about France, where I live, where we mainly use water tanks to heat and store hot water. Cold tap water is perfectly fine to drink, on the other hand.)

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[โ€“] mintyfrog@lemmy.ml 2 points 1 year ago (2 children)

In USA yes, we drink tap water without boiling as long as we're in an area with safe tap water (most of the population) and not using our own untreated/untested well water. Every once in a while we get alerted to local unsafe tap water. We have a filter on the tap water but haven't always.

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[โ€“] Kraweu@lemmy.world 2 points 1 year ago* (last edited 1 year ago)

In Vienna, Austria, tap water isn't just 'run of the mill' water you'd get in other places, it's pristine mountain spring water, transported all the way to the city through old, yet sturdy, aqueducts.

What's amazing about this is that it's not just safe to drink, but often it surpasses the quality of bottled water you'd find in many other countries. So, the next time you're in Vienna, don't hesitate to fill your cup or bottle straight from the tap.

It's not only environmentally friendly, but you'll be enjoying some of the best water around. Truly a testament to how traditional infrastructure can serve modern needs while preserving the environment.

[โ€“] thelittlea@lemmy.ml 2 points 1 year ago

US here. Although we have a water municipality, I still drink bottled water or water through a filter. I had my water tested by third party lab and found out they over chlorinate which leaves a lot of disinfectant byproducts in the water. Iโ€™m looking to get a whole home water filter installed to remedy that.

[โ€“] BendyLemmy@lemmy.ml 2 points 1 year ago* (last edited 1 year ago)

This is crazy - for sure, in many countries it can be taken straight from the tap depending on the reliability of infrastructure... but to waste energy boiling it??? No thanks.

In England, I moved a few times - some places have great tasting water - others not so great - meaning it's always safe (and ok for brewing or cooking) but not so good for drinking from the tap.

In Scotland (a couple of places I stayed and worked) it's a toss up whether you should drink the tapwater, or go to your local and take another dram from the top row.. those Single Malt Whiskeys made with water from Scotland are amazing... but both are safe in moderation.

In Bangkok, if I don't clean my shower out monthly, it ends up with brown gunge building up, so I certainly don't drink the stuff... and it's hard to know how clean it is (though we're told it's certainly drinkable at source, it has a long way to come to my house - and the pressure of the system is low... another red flag). Visiting tropical islands, you see some resorts are connected via long plastic pipes which are often on the surface (in the sun) and so definitely not the best candidate for anything more than a shower.

In Bangkok too, unless you can test it yourself you shouldn't drink it - but I fail to see why you'd decide to boil dirty water and drink it, seeing as most countries with inadequate tap water have drinking water.

I wouldn't use 'boiled tap water' to make my pasta either.

I have six large bottles which gets topped up each week, to make sure I have plenty of water to cook and drink with... If I didn't, then I'd invest in a good water filtration system.

[โ€“] boopdepop@lemmy.fmhy.ml 2 points 1 year ago

I visited australia and we had to drink from the tap.

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