Thailand: stick to bottled or filtered water — tap water isn't recommended.
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Stick to bottled or filtered water — tap water is not generally safe to drink, even in Bangkok. Avoid ice unless you know it's made from purified water.
Extend the same caution to ice as to tap water in Thailand — it's easy to overlook, but ice carries the same risk unless you know it's made from purified water.
Brushing your teeth with tap water is usually fine even where drinking it isn't recommended, but if you want to be extra cautious in Thailand, use bottled water for that too.
Sealed bottled water from a reputable brand is widely available and the simplest safe option in Thailand — just check the seal is intact before drinking.
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