What are the Disadvantage of freeze drying?

* Expensive: Freeze drying is a relatively expensive process, due to the high cost of the equipment and the energy required.

* Time-consuming: Freeze drying can take several days or even weeks, depending on the product being dried.

* Loss of nutrients: Some nutrients, such as vitamin C, can be lost during the freeze drying process.

* Changes in texture: Freeze drying can cause changes in the texture of some products, making them brittle or crumbly.

* Limited product applications: Freeze drying is not suitable for all products. For example, products that contain a high amount of fat or sugar are not well-suited for freeze drying.