Asklemmy

You can drink the tap water in most places in Iceland without boiling it (especially in Reykjavik), but if you're further into the countryside then I would check first!

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

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.

I'm from Denmark, and water is safe to drink straight from the tap here.

I never drink water out of the tap because I prefer to filter it first. It’s safe to drink but I want it clean and much colder so into a filter pitcher and put that in the fridge

Here in italy we can drink tap water without boiling it first

From Singapore. Tap water here is potable but we boil it first out of habit. (But I use tap water for drinking when boiled water has run out).

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.

In the UK they had separate taps for hot and cold because the cold was safe to drink and the hot was not.

Canadian in a major city - yes, safe to drink right from the tap.

However, many remote communities here do not have access to safe drinking water.

In Argentina, generally you can drink straight from the tap.

In Malaysia, the water is advertised as safe to drink. Large majority however, either boils it or uses their own water filters.

No, I never drank unfiltered tap water. I have always lived in areas with poor-tasting tap water. It's not necessarily dangerous, but has a high calcium content and isn't the cleanest either.

As a kid, we had a carbon filter on our refrigerator, and that was good enough. When I moved out of my parents house, I started getting those 5 gallon bottles and would refill them at the grocery store.

I eventually got my own refrigerator that had a carbon filter, but I couldn't really go back to a carbon filter once I got used to water filtered by a RO system. It just didn't taste very good. So about a month ago I installed a RO filter under my sink, and now I don't need to drag my bottles to the store anymore. Best of both worlds!

German Here, we have really good Tapwater here.

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.

Generally in the west (US/Canada, and most of Europe) tap water is safe to drink. I've been to Iceland and don't remember tap water being a concern. This is something you should double check before every trip though. A good rule of thumb is just going by how developed/rich the country is that you are visiting, with more developed countries usually having potable tap water but this is not a guarantee. (And some countries are far too large and diverse to apply this rule efficiently)

Also asking the locals is not necessarily a good idea either as there immune system might be accustomed to the different bacteria and pollutants in the water. For example drinking tap water in some places in the Middle-East might not be an issue for the locals but as I haven't grown up there I probably wouldn't risk drinking tap if I can avoid it, not to ruin the trip with getting sick.

TLDR: check with your country's official travel recommendations

Edit: someone mentioned bottleded water just being bottled tap water. While this is not uncommon in Europe (not sure about the rest of the world), the water does go through extra steps of filtering and cleaning meaning it might be a bit safer to foreigners.

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

Australian here, never met anyone who boils tap water before drinking it. Some people have filtered water taps installed but our tap water is usually pretty great, I drink probably 2-3 litres of it a day

In France tap water is drinkable and good almost anywhere, the exceptions being in some cities during drought or due to unusual pollution. I actually dislike most mineral bottled water because I find it tastes like something.

I used to live in Thailand, while the authorities say the water is good you'll likely get sick if you drink water straight from the tap. I used to buy my water from a filtering machine near my condo.

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.

Poland here, tap water is pretty drinkable in cities, not sure about rural areas though, also I personally use Brita filter just to be sure

Depends on how acclimated your stomach is. Locals may be able to drink without problem but foreigners may have stomach problems.

One thing about tap water in the USA is that, while you can drink it, water taste varies a lot.

For instance, in the Southwest USA, it is very common for bottled water to be sold in gallons. There are even small stores whose main purpose is to filter tap water to remove minerals.

You also have the use of non-potable "grey" water that is treated sewage water that gets used for irrigation. You'll usually see signs to not drink that water.

Just ask someone from there on day one. They can obviously tell and i think this is the best strategy. I bet it's safe like in most parts of middle and northern europe.

In Canada most people drink water after filtering through a Brita, but it's safe to drink without.

I live in the US in a location where the tap water is safe to drink (not always the case, e.g., Flint Michigan) but I still filter it for the taste (chlorine in the water).

Most municipal water is safe to drink in the US. Ground water depends entirely on where you live and many situational factors (City pollution, water level, etc.).

We will get boil notices from time to time when a contaminant is detected in the water supply. But that's been rare in my experience, after living in several regions in the US.

No one should ever use tap water for netty potting without boiling it though! You can contract a brain-eating amoeba if you don't boil, which has over 97% death rate.

Hungarian here. It is safe to drink without boiling. People only boil water for baby formula to be extra safe.

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.