A: Guests are allowed to bring outside food and nonalcoholic beverage items into the park for self-consumption, provided they are not in glass containers and do not require heating, reheating, processing, refrigeration or temperature control and do not have pungent odors.

You are permitted to bring flasks into Disney parks, provided they adhere to specific safety and security guidelines. If you are referring to a vacuum-insulated water flask like a Hydro Flask or Yeti, these are highly encouraged to help guests stay hydrated in the heat. However, they must not be made of glass, as glass containers are strictly prohibited for safety reasons (with the exception of small baby food jars). If the flask is intended for alcohol, it is strictly forbidden; Disney has a zero-tolerance policy for bringing outside alcoholic beverages into the theme parks. Security cast members may ask you to open the flask for inspection or use a "sniffer" device to ensure it contains only water or non-alcoholic liquids. Additionally, you should ensure the flask is not filled with loose ice, as Disney's 2019 policy change requires the use of reusable ice packs or dry ice to prevent leaks during security screenings. Keeping a large metal flask in your bag may also trigger a secondary manual bag check at the X-ray scanners.