Storing chocolate in a travel bag in 2026 requires protecting it from heat, moisture, and odors. Chocolate is highly susceptible to "blooming"—where cocoa butter separates and creates a white film—if temperatures exceed 21°C (70°F). To prevent melting, wrap the chocolate in a layer of aluminum foil (to block light and odors) and place it inside a well-insulated thermal pouch or a padded laptop sleeve, which offers some temperature stability. Always pack it in the center of your bag, surrounded by clothes, which act as an additional insulating layer against external heat. Avoid putting chocolate in outer pockets that are exposed to direct sunlight or near electronics that generate heat. For high-end artisan chocolates, consider placing a small, dry silica gel packet in the container to prevent humidity from making the chocolate "sweat." If the chocolate does soften, do not handle it; place it in a cool, dark place (or a hotel mini-fridge for 10 minutes) to allow it to reset before unwrapping, as this preserves the temper and texture as much as possible.