If you’re planning to move to Chiang Mai or even visit for a while, you’re probably wondering about the safety of the local tap water and if it’s safe to drink. Whether you’re brushing your teeth, staying hydrated or preparing meals, understanding the water situation is crucial.
The reality is, water safety in Thailand varies, and Chiang Mai is no exception. While tap water might meet “local” standards, tourists, expats and digital nomads often find themselves asking: Is it safe enough to drink? What about using it for daily tasks like cooking or brushing your teeth?
This guide will answer those questions.
We’ll break down the truth about tap water in Chiang Mai, explore safer alternatives like bottled water and filtration systems, and cover tips on whats safe to eat/drink and isn’t.
By the end, you’ll know how to navigate water safety here, ensuring a healthy and stress free stay in this beautiful city.
Overview of Tap Water Safety in Chiang Mai
The big question is: Is the tap water in Chiang Mai safe to drink?
The short answer is no. For first time visitors to Thailand, you should take precautions to avoid exposure to it so that your holiday is not put at risk due to stomach issues.
While the city’s tap water undergoes treatment and meets Thailand’s national safety standards, it is generally not recommended for direct consumption.
Here’s why.
Contaminants: Although treated, tap water in Chiang Mai can still contain harmful elements such as heavy metals, chlorine, bacteria, and microorganisms.
These potential contaminants arise from the aging infrastructure, particularly in older buildings where pipes may leach harmful substances into the water. This can elevate the risk of gastrointestinal issues and other health concerns, especially for foreigners unaccustomed to the local bacteria.
Do locals drink tap water in Chiang Mai?
Locals avoid drinking tap water and opt for alternatives like bottled or filtered water. To be clear, no one drinks the tap water in Chiang Mai unless it’s out of absolute necessity.
That said, tap water in Chiang Mai is generally safe for non drinking purposes, including:
- Brushing your teeth: Many residents and expats use tap water for brushing without any issue. This is due to building up a tolerance to it over time. However, for added safety, using bottled or filtered water is common, particularly for those with more sensitive stomachs.
- Showering: Bathing or showering with tap water is considered completely safe. Just be cautious to avoid ingesting it accidentally, especially if you have sensitive skin or are prone to irritations.
If you have open wounds or have recently gotten a tattoo it may be best to sterilize the area after water exposure to prevent risk of infection. - Washing dishes: Tap water is commonly used for washing dishes, but some households prefer to use filtered or boiled water for the final rinse to be extra safe.
The takeaway? While it’s relatively safe for limited uses, tap water in Chiang Mai should be avoided for drinking. Fortunately, Chiang Mai offers several convenient and affordable alternatives for safe, clean water, which we’ll explore in the following sections.
Chiang Mai Bottled Water Options – Best Solution for Tourists, Travelers and Short Term Visitors.
In Chiang Mai, bottled water is the go to solution for most locals, expats, and travelers when it comes to safe drinking water.
It’s readily available in convenience stores like 7/11, supermarkets, and even local shops, ensuring you always have access to clean, drinkable water. Let’s break down the main types of bottled water available, their pricing, and the environmental concerns that come with it.
Types of Bottled Water in Chiang Mai
Filtered Water Brands
These brands use filtered water from various sources with rigorous safety and filtration standards such as reverse osmosis, UV and Ozone treatment. Popular choices like, Singha Crystal and Namthip are trusted brands in Thailand, providing affordable drinking water that is consumed by millions of locals and expats alike.
Natural Mineral Spring Water
If you’re looking for water with a high mineral content and sourced from rural, natural springs, brands like Purra, Aura and Mont Fleur are your go to options.
These bottles often boast 100% natural mineral water, sourced from remote Thai springs, and are marketed as being pure and rich in beneficial minerals. Their premium positioning makes them more expensive but is preferred by those looking for naturally sourced options.
Price for Bottled Water in Chiang Mai
One of the key advantages of bottled water in Chiang Mai is its affordability, with plenty of options for every budget:
- Basic Brands: Standard brands like Crystal, Namthip, and Singha offer bottles starting from 5-10 THB. These are widely available in 7-Elevens, supermarkets, and even small mom and pop shops around the city.
- Mineral Water: Brands: High quality mineral water brands like Aura and Mont Fleur will start from 10+ THB and are similarly available.
- Premium Brands: Imported brands like Evian or Perrier command a higher price. Expect prices to start from 40+ THB per bottle, depending on the size and brand. These are less commonly consumed but available in select stores like Tops Supermarket or Rimping Supermarket.
Refillable Water Stations in Chiang Mai – The Cheapest Way to Get Water in Chiang Mai
For those who want to minimize their environmental footprint while staying hydrated, refillable water stations are an excellent, eco-friendly alternative to constantly purchasing bottled water.
These stations offer filtered drinking water that’s both safe and budget friendly, making them a popular option for long term residents, budget focused travelers and eco conscious individuals.
How Refillable Water Stations Work
Most refill stations in Chiang Mai use Reverse Osmosis (RO) technology, a purification method that removes most harmful contaminants like bacteria, heavy metals, and chlorine from the water.
RO is highly effective, making the water safe for drinking and cooking. Refill stations provide an affordable solution while reducing the environmental impact of single-use plastic bottles.
One downside is that RO water is typically considered acidic as it has had the alkaline mineral content removed. Therefore it may be best for your health to balance your intake of pure RO water with occasional mineral water.
Where to Find Refillable Water Stations in Chiang Mai
Refillable water stations are widely available throughout Chiang Mai, making it easy to access clean drinking water without spending much:
- Residential Areas: Many apartment buildings, condominiums, and gated communities feature RO refill stations. These are typically well maintained, providing a convenient option for residents to fill up large water containers for daily use.
- Public Areas: Refill stations can also be found in more public settings, such as near supermarkets like Big C, Tesco Lotus, and Rimping, as well as next to 7-Elevens and local convenience stores.
These machines are affordable, typically charging 1 THB per liter, making them one of the most cost effective ways to access drinking water in Chiang Mai.
How to Use Refillable Water Stations
Most refill stations are coin operated and easy to use.
Simply bring your own water containers, insert coins, and select the amount of water you need.
Keep in mind you need to get the water home and depending on your mode of transport, you may want to limit how much you fill up.
Things to Watch Out For
While refillable water stations are an excellent option, not all are created equal.
Hygiene can be a concern at some of the more public refill stations, especially if they are not regularly maintained or their filters aren’t changed frequently.
Poor maintenance could lead to water contamination, which defeats the purpose of using these machines in the first place.
To ensure safety, follow these guidelines:
- Stick to Reputable Locations: Use refill stations at well known supermarkets, modern condominiums, or places you trust. These locations are more likely to maintain their machines properly.
- Check Maintenance Logs: Some stations have visible maintenance logs showing the last time the filters were changed. If possible, choose stations that have been recently serviced to ensure the water quality is up to standard.
- Inspect for Cleanliness: Before using a station, inspect the machine for any visible signs of dirt, rust, or disrepair. If a refill station appears neglected, it’s best to avoid it and find a more reliable option.
Advantages of Using Refillable Water Stations
- Cost-Effective: At only 1 THB per liter, refill stations are far more affordable than purchasing bottled water daily. Over time, this small change can lead to significant savings, especially for expats and long term visitors.
- Eco-Friendly: By refilling your water bottles, you significantly reduce the amount of plastic waste generated by single use bottles. This is a great way to lessen your environmental impact while living or traveling in Chiang Mai.
Refillable water stations provide an excellent balance of cost, convenience, and environmental responsibility. They are a popular choice for anyone looking to stay hydrated in Chiang Mai while keeping waste to a minimum.
However, always prioritize hygiene and cleanliness when choosing which stations to use.
Home Water Filtration Systems – Perfect for Expats and Long Term Travelers
For expats and long term residents in Chiang Mai, installing a home water filtration system is one of the most reliable and convenient ways to ensure access to safe drinking water.
With your own filtration system, you eliminate the need for frequent bottled water purchases or the uncertainty of refill stations, giving you purified water directly from your tap.
It also saves you the hassle of transporting and moving water so frequently. For those on high floors of condo units, a home water filter can be a massive quality of life upgrade.
Popular Water Filtration Systems
Several types of water filtration systems are available in Chiang Mai, each offering different levels of purification. Here are the most popular and effective options:
Reverse Osmosis (RO) Filters
Reverse Osmosis (RO) systems are widely considered the gold standard for water filtration in Chiang Mai.
Using a semipermeable membrane, these systems effectively filter out contaminants like bacteria, viruses, chlorine, and heavy metals.
With multiple filtration stages, RO systems ensure even the smallest particles and impurities are removed, making the water exceptionally clean and safe for drinking.
- Comprehensive Filtration: Removes up to 99% of contaminants, including harmful microorganisms, chemicals, microplastics and heavy metals, offering top notch water quality.
- Long Term Solution: Once installed, an RO system provides a constant supply of clean water, reducing the need for external sources like bottled water. It’s a cost effective investment over time, perfect for those planning to stay in Chiang Mai long term.
Inline Filters & Tabletop Filters
For residents looking for a simpler solution, inline filters and tabletop water filters are also popular.
These systems are easier to install and maintain compared to RO filters. They attach directly to your faucet or are placed on your countertop, filtering water as it flows through.
However, while they offer some level of filtration, these systems generally do not remove as many contaminants as RO systems do.
- Convenience: These filters are easy to install without needing a professional, making them a good option for shorter term residents or those looking for a hassle free setup.
- Limitations: Unlike RO systems, inline and tabletop filters typically don’t remove heavy metals, some pesticides and some harmful bacteria. They are effective for basic filtering, such as reducing chlorine and improving taste, but some contaminants may remain in the water.
Reducing Exposure to Microplastics
One major advantage of home filtration systems is the ability to reduce exposure to microplastics.
In Thailand, bottled water is often stored in high temperatures, and when plastic bottles are exposed to heat and sunlight, they can release microplastics and chemicals into the water. For the health-conscious, this is a significant concern.
Using a home RO system not only ensures you’re drinking the purest water but also helps avoid these microplastic risks. This is particularly important for those prioritizing long term health and reducing exposure to unnecessary chemicals.
In summary, while inline filters or tabletop systems may suffice for basic filtration, an RO system is the most comprehensive solution for long term residents looking for peace of mind.
It ensures top quality water while protecting you from the potential risks of bottled water contamination, including microplastics.
Home Delivery of Bottled Water
For those who prefer not to install filtration systems, another convenient alternative is home delivery of large, refillable water bottles. Companies like Glacier and Nestle Pure Life deliver 19-20 liter water bottles directly to your home. These bottles are an eco-friendly option compared to constantly purchasing smaller bottles, reducing both your costs and your environmental impact.
- How Home Delivery Works:
You can subscribe to regular deliveries, ensuring you always have clean drinking water on hand. Many providers offer exchange systems, where they pick up your empty bottles and replace them with full ones, ensuring convenience and minimizing plastic waste. - Benefits of Home Delivery:
- Cost Effective: Refilling large water bottles is significantly cheaper than buying individual smaller bottles.
- Eco-Friendly: Reduces the amount of single-use plastic waste.
- Convenient: Delivered right to your door, making it easy to keep a steady supply of drinking water.
- Cost Effective: Refilling large water bottles is significantly cheaper than buying individual smaller bottles.
Why Invest in a Water Filtration System?
For expats and long term residents, the benefits of investing in a home water filtration system are clear:
- Convenience: No need to constantly purchase or carry bottled water.
- Savings: Over time, a water filtration system is more cost effective than buying bottled water regularly.
- Health: Reduce your exposure to microplastics, add alkaline and mineral filters to add more body friendly nourishment to your drinking water.
- Environmental Impact: Reduces plastic waste significantly, contributing to a more sustainable lifestyle.
Having a reliable water filtration system ensures that you always have access to clean and safe drinking water, giving you peace of mind while living in Chiang Mai.
With the variety of filtration systems available, you can choose the one that best fits your needs and lifestyle, allowing you to enjoy your time in the city without worrying about water safety.
Water Safety for Food Preparation in Chiang Mai Restaurants
A common concern for tourists and travelers dining out in Chiang Mai revolves around food hygiene and water safety.
Questions like “Is the ice in drinks safe?” and “Can I eat raw vegetables?” are frequently asked, and the answers can vary.
Let’s break down these concerns to give you a clearer understanding.
Is it Safe to Have Ice in Drinks in Chiang Mai?
When dining in countries like Thailand, one of the first questions that comes up is whether the ice is safe.
The reassuring news is that most ice served in Chiang Mai’s bars and restaurants is made in regulated factories using filtered water. This factory made ice is generally safe to consume and can be identified by its clear appearance with a hole in the middle.
However, once the ice leaves the packaging, potential risks increase. For instance, the glass it’s served in could have been rinsed with tap water, or the ice may have been stored in a container that hasn’t been thoroughly cleaned, possibly even sharing space with unwashed bottles.
These factors introduce some uncertainty, especially for those with sensitive stomachs. While most higher end establishments take care to maintain hygiene standards, if you’re particularly cautious, it might be best to avoid ice altogether in more casual spots.
Is Coffee Made with Filtered Water?
Yes, you’ll be pleased to know that the majority of Chiang Mai’s established coffee shops use filtered water for brewing coffee. Larger cafes often have built in filtration systems, while smaller vendors tend to rely on reverse osmosis (RO) filtered water, ensuring your coffee is both safe and delicious.
Is it Safe to Eat Salads and Raw Vegetables?
This one is a bit trickier. In health conscious or salad focused restaurants, it’s common for produce to be washed with filtered or boiled water.
However, in many establishments, especially street stalls and local eateries, tap water is often used for rinsing fruits and vegetables. If you’re particularly prone to digestive issues, it might be wise to skip raw salads at lower end or unfamiliar places.
That said, in high end restaurants, where international standards are more closely followed, filtered water is typically used throughout food preparation.
For expats, digital nomads, or long term visitors, there is some reassurance in knowing that you will likely build a tolerance to locally washed produce over time.
Cooking with Tap Water
When it comes to cooking, there’s a general divide. Higher end restaurants are more likely to have full filtration systems in place, ensuring that the water used in preparing and cooking food is clean and safe.
On the other hand, in smaller eateries or street food stalls, it’s common for tap water to be used in food preparation, especially for boiling rice or noodles.
As the old saying goes, “You get what you pay for.” While street food is part of the cultural experience, it’s important to understand that hygiene standards may not always be as stringent as those in higher-end restaurants.
Practical Tips for Water Safety in Chiang Mai
With a variety of water options available in Chiang Mai, knowing how to stay safe while hydrating can make a big difference in your daily routine.
Here are some practical water safety tips to ensure you avoid any unnecessary health risks.
Boil Tap Water
If bottled or filtered water isn’t accessible, boiling tap water for at least one minute is an effective way to kill bacteria and viruses. This is a widely recommended practice for travelers and long term residents alike.
However, keep in mind that while boiling eliminates harmful microorganisms, it does not remove chemical contaminants such as heavy metals, chlorine, or pesticides that may be present in the water.
For this reason, boiled water is best reserved for cooking or hot beverages rather than for drinking on its own.
Use Filtered Water for Brushing Teeth
Although many locals and expats use tap water for brushing their teeth, some individuals, particularly those with more sensitive digestive systems, prefer to err on the side of caution.
Using bottled or filtered water for oral hygiene can help avoid potential stomach discomfort, especially if you’re new to Thailand or have a sensitive stomach.
While it’s generally safe to brush your teeth with tap water, making the switch to filtered or bottled water offers an extra layer of safety, particularly during the initial adjustment period after arriving in Chiang Mai.
Check Maintenance Dates on Refill Stations
If you opt to use one of the many public water refill stations in Chiang Mai, make sure to check the maintenance stickers on the machines. These labels typically indicate the last time the machine’s filters were replaced.
Choosing a station that regularly changes its filters ensures that you’re getting clean, contaminant-free water.
Opt for refill stations located in reputable places like shopping centers or private condo complexes, as they tend to maintain their machines more consistently than those in public streets.
By following these simple yet effective water safety tips, you can minimize your health risks and enjoy a worry free stay in Chiang Mai. Whether you choose to boil water, install a filtration system, or use refill stations, staying hydrated is easy with the right precautions.
Conclusion
While it’s true that tap water in Chiang Mai is not recommended for direct consumption, staying hydrated here is incredibly simple and safe.
By following a few basic water safety practices, like using bottled or filtered water for drinking and ensuring you’re aware of refill station maintenance, you can focus on making the most of your time in this incredible city.
Now that you know about drinking water, you may also want to know about general Safety in Chiang Mai.
Whether you’re here for a short visit or planning a long term stay, Chiang Mai offers a blend of modern convenience and traditional charm, making it an amazing place to live, work, and explore.
Rest assured, you can drink confidently, stay healthy, and fully embrace all that Chiang Mai has to offer.
FAQ: Is Tap Water Safe in Chiang Mai?
Can you drink tap water in Chiang Mai?
No, tap water in Chiang Mai is generally not considered safe to drink. Although it undergoes treatment to meet local standards, it may still contain contaminants such as heavy metals, bacteria, and chlorine. Most locals, expats, and tourists opt for bottled or filtered water for drinking.
Is it safe to brush your teeth with tap water in Chiang Mai?
Yes, it’s generally safe to brush your teeth with tap water in Chiang Mai, especially if you’ve built up a tolerance to local bacteria. However, for added safety, many people use bottled or filtered water, especially if they have sensitive stomachs.
Can you shower in Chiang Mai tap water?
Yes, showering in tap water is considered safe in Chiang Mai. The risk of skin irritation or harm is minimal.
Where can I buy safe drinking water in Chiang Mai?
Safe drinking water is widely available in Chiang Mai. You can purchase bottled water at convenience stores like 7-Eleven, supermarkets like Big C, Tesco Lotus, and local shops. Popular brands like Singha, Crystal, and Mont Fleur offer affordable and trusted drinking water options.
Are water refill stations safe in Chiang Mai?
Water refill stations are a common and eco-friendly option in Chiang Mai. Most use reverse osmosis (RO) filtration, making the water safe for drinking. However, be cautious of the machine’s maintenance. Choose well maintained refill stations at reputable locations like supermarkets or residential complexes.
How much does bottled water cost in Chiang Mai?
Bottled water in Chiang Mai is very affordable. Basic brands like Crystal or Namthip start at around 5-10 THB per bottle. Premium mineral water brands like Aura or Mont Fleur may cost slightly more, starting from 10 THB. Imported brands like Evian are available but more expensive, starting from 40+ THB.
Can I use tap water for cooking in Chiang Mai?
It’s generally safe to use tap water for boiling or cooking food, as the heat eliminates most bacteria. However, many people prefer to use filtered or boiled water, especially for making soups, rice, or any food that absorbs a lot of water.
How can I get water delivered in Chiang Mai?
Water delivery services are a popular choice for expats and long term residents in Chiang Mai. Companies like Glacier and Nestle Pure Life deliver large, refillable 19-20 liter water bottles directly to your home. This service is both eco-friendly and convenient.
How do I use water refill stations in Chiang Mai?
To use a water refill station, bring your own bottle, insert coins (typically 1 THB per liter), and fill your container with filtered water. Be sure to choose stations that display regular maintenance logs to ensure the water is safe to drink.
Is ice safe in Chiang Mai?
Most ice served in Chiang Mai’s restaurants and bars is factory made from filtered water and is safe to consume. However, in smaller, casual eateries, there is a slight risk that ice could be exposed to contaminants, so it’s best to be cautious.
