Answer
It's a great idea to be cautious about food allergies when attending festivals. Many food stalls in Chiang Mai are familiar with common allergens and can accommodate requests. However, it's always best to ask vendors directly about specific ingredients in their dishes.
• Additionally, festivals often have information booths or pamphlets that provide details on food options, including allergy-friendly choices. You can also look out for vegetarian or vegan stalls, as they tend to be more transparent about their ingredients.
Practical Chiang Mai planning note: Choose by location, dietary needs, hygiene, atmosphere and the time you plan to visit rather than relying on a single "best" list. Menus, opening days and stall locations change, especially at markets and seasonal venues.