At 9 months, look for "melty" puffs that are specifically designed for infants, which dissolve easily to prevent choking. Always check ingredient labels for salt, sugar, preservatives, and spicy seasonings, as these should be avoided. Simple, two-ingredient snacks made from millet or rice flour are excellent options. As with any new food, always test the snack at home to ensure your baby can handle the texture before offering it during travel or outside the home.