Foods brought back to edible form, usually by stirring water into a dehydrated base. Instant soups and bakery mixes, juice from concentrate, and dried mashed potato all travel light and cheap, then regain their character on reconstitution. Getting it right means following the package: the correct water temperature and ratio, lump-free mixing, and any standing time the starches need. For products like infant formula, precision is a safety matter, not just a quality one. Manufacturers validate that the reconstituted food matches the intended flavor, texture, and nutrition.