Dehydrated onion is a processed form of fresh onion, in which the moisture content is removed through drying methods such as air drying, freeze drying, or oven drying. This process helps preserve the onion for longer periods without refrigeration while retaining much of its original flavor and nutritional value. Dehydrated onions are available in various forms, including flakes, granules, minced, chopped, and powder, making them a convenient ingredient for soups, sauces, seasonings, and ready-to-eat meals. They are widely used in both household cooking and food industry applications due to their long shelf life, ease of storage, and reduced preparation time.