Look for foods that are hot and steaming in order to be on the safe side. The best places are the ones where food is made to order. Hot temperatures kill most germs that cause digestive illnesses as opposed to cold or lukewarm temperature that encourages bacteria growth.

To avoid "Bangkok Belly" while enjoying Thailand's world-class culinary scene, the most important rule is to eat where it is busy, as high turnover ensures the food is fresh. Stick to piping hot, cooked-to-order dishes like Pad Thai or fried rice, as heat kills most bacteria. Be cautious with raw vegetables and unpeeled fruits that may have been washed in tap water; instead, opt for fruits you peel yourself, like mangoes or bananas. While street food is a highlight, choose vendors with visible high hygiene standards and avoid "pre-cooked" buffets where food sits out in the heat. Regarding hydration, never drink tap water; stick to sealed bottled water or ice made from purified water (usually recognizable by its uniform cylindrical shape with a hole in the middle). Many travelers also recommend taking a probiotic daily to strengthen their digestive system before and during the trip to handle the unique local flora.