Mysoda water bottles are not dishwasher safe. Wash the bottle with mild dishwashing detergent and warm water. You can use a bottle brush if needed. Tip! Make your sparkling beverage using Mysoda drink mix directly into the glass and your bottle stays fresh longer. Avoid extreme temperatures when storing the bottle. Do not store bottles at high temperatures, such as in direct sunlight. Also, do not put bottles in the freezer.