Freeze-drying, also known as lyophilization, is a method of preserving food by removing the moisture content through a process of freezing and sublimation. The process was developed in the early 20th century and has been used to preserve a wide range of foods, including fruits, vegetables, meats, and dairy products.
One of the earliest recorded uses of freeze-drying was during World War II, when the process was used to preserve blood plasma for the military. In the 1950s, freeze-drying was used to preserve food for NASA’s space program, as the process allowed for the production of lightweight, shelf-stable foods that could withstand the rigors of space travel.
In the decades since, freeze-drying has been used to preserve a wide range of foods, including fruits, vegetables, meats, and dairy products. Today, freeze-dried food is widely available and is often used as a convenient and nutrient-rich option for people and pets on the go.
Freeze-dried food has several potential benefits for dogs:
Long shelf life: Freeze-drying removes the moisture from the food, which can help extend its shelf life. This can be especially useful for people who don’t go through a lot of dog food at once or who don’t have a lot of storage space.
It’s important to keep in mind that freeze-dried food should be rehydrated before serving, and it’s a good idea to follow the recommended rehydration guidelines to ensure that your dog is getting the right amount of water in their diet.