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€“] [email protected] 3 points 2 years ago

Norway = Yes. But the fresh water pipes are in the same trench as the sewer pipes, and being 100 years old, the clean water depends on the pressure. This is in Oslo btw..

[โ€“] [email protected] 3 points 2 years ago (1 children)

The US varies widely. Some Americans in this thread tell you their tap water is squeaky clean. Meanwhile, there are places like Flint where the tap water not only is deadly but remains deadly even if you do boil it.

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[โ€“] [email protected] 3 points 2 years 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€“] [email protected] 3 points 2 years ago

German: Yes. Most of the water I consume comes straight from the tap

[โ€“] [email protected] 3 points 2 years 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€“] [email protected] 3 points 2 years ago* (last edited 2 years ago)

Quebec, Canada. I grew up in a rural area where we had our own artesian well on the plot of land, so not attached to any city infrastructure, and no purification process at all, except what is done naturally from the soil. And guess what? It's the purest water I've ever seen, it taste amazingly fresh and the tap is directly plugged on it.

Moved to a big city and now have to use the city infrastructure, which of course have a huge purification plant and they do tests continuously to make sure it pass a high quality threshold. But even if it's probably cleaner than 90% of the rest if the world, it still have a slight unpleasant taste. I could probably buy a filter, but never bothered.

Buying bottled water is seen as wasteful and also a scam since it's often just tap water they bottled. When my family visited a country where bttled water is common, they were disgusted at how much plastic pollution it creates.

I would hate to have to boil water before every usage, I assume you always keep a few gallons in the fridge to keep some cold? It takes space and energy to prepare, must be annoying. But what I wonder the most is, how to do wash yourselves and your clothes? If the water smells foul, doesn't taking a shower just stink you even more than it cleans?

[โ€“] [email protected] 3 points 2 years ago

Luxembourg here, i'll drink straight from the tap.

[โ€“] [email protected] 3 points 2 years ago

In Rome there are literally fountain running constantly in the middle of almost all the streets(old area specially ) of potable whater. Again non stop, people use them allot

[โ€“] [email protected] 3 points 2 years ago

I'm from Chile and we drink tap water without boiling. Some people buy filtered water because they dont like the taste, not because is unsafe.

It shocked me when I visited Peru and Mexico and realized that tap water is not safe there.

[โ€“] [email protected] 3 points 2 years ago* (last edited 2 years ago) (1 children)

I believe in Canada we have high standards for our potable water, unlike the UK for example our water heaters need to be up to par (UK typically has seperate taps AFAIK).

So no need to boil, also if you're trying to get rid of chlorine you can just use Brita filters, carbon filters that restaurants use do the same AFAIK. Also even cities like mine which (at least at some point before now) had way more houses than apartments still chlorinated the entire city's supply.

Filters are insanely good these days. I was thinking about getting a life straw, but there's a slightly more expensive alternative that can do like 500x more filtering before it needs to be replaced, and comes with a pouch you can fill and then pour into a regular water bottle. Life straws are meant to be drank from directly, and the alternatives that company offers are just water bottles with life straws built in - so you put unfiltered water in the bottle itself... Probably gets gross or requires constant cleaning

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[โ€“] [email protected] 3 points 2 years ago

One thing to consider: While tab water in most of the developed world is potable,any water safety guarantees usually end where the house water pipes begin. Depending on the state of the piping, tap water might not be safe, even if the water supplyer says it's safe.

You can get a water test (especially bacteria is important) for relatively cheap. Last time I did such a test it was ~โ‚ฌ60. It's not wrong to do one.

Also, the definition of potable water is that the water is potable after the tap has been running for 10(!) minutes.

Bacteria contaminated pipes are pretty common and if the water has been sitting in these biofilm-covered pipes over night or even longer, the water can become pretty harmful. Especially after you get home from a vacation, letting the water run for a decent amount of time might be a good thing.

Also: the worst thing that can happen to your water pipe system are blind pipes, so pipes that are connected only on one end. That could be e.g. left-over plumbing after remodeling or pipes that lead to unused taps. If at all possible, these ahould be removed or flushed at best daily.

[โ€“] [email protected] 2 points 2 years ago

Damn that sounds so time consuming. In most of the US where I'm from, water is treated really well and can just be drank straight from tap safely. I put my water in a brita to filter it so it's a bit more pure, and it also tastes better. Some nicer fridges with have a water filter in the front door, so you just press your glass against it and it fills it with perfect water. Also they usually have a button to dispense ice cubes. I never realized how nice I have it compared to the rest of the world lol.

[โ€“] [email protected] 2 points 2 years ago

US, Colorado - no need to filter or boil the tap water here. One of the benefits of living at the base of the mountains I suppose

[โ€“] [email protected] 2 points 2 years ago

Your examples, yes, but I also dont know of any European country where you need to boil the water you drink.

[โ€“] [email protected] 2 points 2 years ago

Canada - Many people here put water in the fridge or a britta jug to get rid of the chlorine taste

[โ€“] [email protected] 2 points 2 years ago

no and no. The tap where I live taste nasy, i think its safe to drink but its not very good so I dont use it.

[โ€“] [email protected] 2 points 2 years ago* (last edited 2 years ago) (4 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.

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[โ€“] [email protected] 2 points 2 years ago

Here is Jamaica it is safe to drink the tap water without boiling.

[โ€“] [email protected] 2 points 2 years ago

When I was in Cainta, Rizal, Philippines, my uncle always boils tap water before drinking. This is indeed a safety measure. He doesn't buy gallon bottles of drinking water.

[โ€“] [email protected] 2 points 2 years ago (1 children)

Spanish here. I drink tap water, but I have a filter installed in the faucet, otherwise it tastes a bit funny (it is drinkable though).

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[โ€“] [email protected] 2 points 2 years ago* (last edited 2 years ago)

Modern treatment plants don't use chlorine anymore, they use cloramines that have little scent or taste. This is most likely the case in HK as well.

Boiling water that doesn't need to be boiled is a waste of energy and GHG.

[โ€“] [email protected] 2 points 2 years ago

Poland: water is always drinkable from the tap.

[โ€“] [email protected] 2 points 2 years ago

I am from the Philippines, and in my city, there are districts that have unpotable water and they resort in using purified water for drinking and cooking. In my district though, water is very potable and we drank it until switching to purified water last year because our water provider got their system contaminated.

[โ€“] [email protected] 2 points 2 years 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€“] [email protected] 2 points 2 years ago (3 children)

New Zealand and yes it's safe to drink without boiling here. I do run the tap for a few seconds to clear out any standing water before drinking anything though.

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[โ€“] [email protected] 2 points 2 years ago

In India generally people use a water purifier to filter tap water before consumption.

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