Preservation Techniques Used
Freeze-Dried
Freeze-drying is the process that allows food to be shelf stable while retaining the maximum amount of nutrients. Freeze dried foods retain their original colour, taste and texture.
There are four steps to the technique of Freeze-Drying:
1. Freezing: The product is frozen. This provides a necessary condition for low temperature drying.
2. Vacuum: After freezing, the product is placed under vacuum. This enables the frozen liquid in the product to vaporize without passing through
the liquid phase, a process known as sublimation.
3. Heat: Heat is applied to the frozen product to accelerate sublimation.
4. Condensation: Low-temperature condenser plates remove the vaporized liquid from the vacuum chamber by converting it back to a solid.
Packaged Glass Containers
Glass containers are safe, tamper-resistant, inert, non-porous and impermeable to chemical interactions. Glass containers protect products from degradation caused by moisture and oxygen. Properly sealed, they ensure the freshness, taste and quality of products over a very long time. Freeze-dried coffee is poured into a shaped glass container that is designed to be presentable for consumers to buy. The cap of this glass container is tightly closed to keep the freshness and aroma of the coffee in and it keeps moisture and any enzymes out.
Freeze-drying is the process that allows food to be shelf stable while retaining the maximum amount of nutrients. Freeze dried foods retain their original colour, taste and texture.
There are four steps to the technique of Freeze-Drying:
1. Freezing: The product is frozen. This provides a necessary condition for low temperature drying.
2. Vacuum: After freezing, the product is placed under vacuum. This enables the frozen liquid in the product to vaporize without passing through
the liquid phase, a process known as sublimation.
3. Heat: Heat is applied to the frozen product to accelerate sublimation.
4. Condensation: Low-temperature condenser plates remove the vaporized liquid from the vacuum chamber by converting it back to a solid.
Packaged Glass Containers
Glass containers are safe, tamper-resistant, inert, non-porous and impermeable to chemical interactions. Glass containers protect products from degradation caused by moisture and oxygen. Properly sealed, they ensure the freshness, taste and quality of products over a very long time. Freeze-dried coffee is poured into a shaped glass container that is designed to be presentable for consumers to buy. The cap of this glass container is tightly closed to keep the freshness and aroma of the coffee in and it keeps moisture and any enzymes out.