The principle of freeze-drying involves placing frozen food in a vacuum environment to undergo sublimation, which dehydrates the food. In simple terms, freeze-drying is essentially a process of sublimation applied to frozen products, which means it goes straight from solid to gas, leaving behind all the water.
The entire freeze-drying process consists of three stages: pre-freezing, rapid freezing, and vacuum drying.
Imagine freezing fresh veggies, juicy fruits, and succulent meats. Then, in a vacuum state, all the water is gently removed while preserving the incredible flavors, colors, shapes, and essential nutrients. It's like preserving the very essence of the food!
But wait, there's more! Because most of the water is removed, the end result is lightweight, compact, and easy to carry. It's perfect for adventurers and foodies on the go!
It's like a secret superpower in the food industry, bringing us the best of freshness and convenience in one delicious package!