Freeze dryer freeze-dried candy

What is freeze drying?

Freeze-drying, also known as freeze-drying, is a process in which substances are frozen and then the frozen water is removed by sublimation. Sublimation is a direct transition from a solid state to a gas state without going through the liquid phase. This technique removes water while preserving the structure of the food and minimizes damage to its cellular integrity.

Benefits of freeze-drying

1, maximize the retention of color, flavor and nutrients

Freeze-drying is carried out at low temperatures, so it is especially suitable for many heat-sensitive substances, and the loss of some volatile components in the substances is very small, which is more suitable for food drying and fully retains the original color, flavor and nutrients. Such as proteins, microorganisms, etc., do not undergo denaturation or lose biological vitality.

2, retain the appearance of fresh food

In the freeze-drying process, the growth of microorganisms and the action of enzymes can not be carried out, so the original properties can be maintained; Because it is dried in a frozen state, the volume is almost unchanged, the original structure is maintained, and concentration does not occur.

3, strong rehydration, close to fresh products

After freeze-drying, the substance dissolves quickly and completely after adding water, and almost immediately returns to its original properties.

4, without any addition, long shelf life

Because drying is carried out under a vacuum, oxygen is very little, so some easily oxidized substances are protected; Freeze-drying technology can exclude more than 95-99% of the water, and in the case of low temperature freezing can inhibit the growth of microorganisms, so there is no need to add any chemical additives, so that the product can be preserved for a long time after drying without deterioration

What is freeze-dried candy?

Freeze-dried candy is a candy that removes moisture through a freeze-drying process. The process involves freezing the candy, then lowering the pressure in the chamber and heating it, which causes the ice crystals to sublimate (from solid to steam) and the water molecules to evaporate. This leaves a light, crunchy texture. The resulting freeze-dried candies can be used as toppings for desserts, ice cream or snacks, they are also popular with astronauts, and often have visual appeal and unique charm.

How to make freeze-dried candy

Step 1: Prepare the candy

Prepare the candy you want to freeze dryer. This could be any type of candy, such as hard candies, gummies, candy bars, etc. Make sure they are individually packed or have been separated out for handling when freeze-drying.

Step 2: Prepare the freeze dryer

Set the freeze dryer to ensure proper temperature and pressure. Depending on the type of candy and the machine model, the temperature and time Settings may need to be adjusted. In general, choose a low temperature and appropriate time to ensure that the candy gets thoroughly freeze dried.

Step 3: Arrange the candy

Place the prepared candies in the freeze dryer tray (we have a choice of 4 /6 /8 layer trays). Make sure there is enough space between them so that the candy can fully dissipate heat and stay in top condition during the freeze-drying process.

Step 4: Start the freeze drying process

After loading the candy into the tray, turn off the freeze dryer and begin the freeze-drying process. The machine will start a freeze-drying cycle, which usually takes several hours to complete. During this time, the moisture in the candy will change from the frozen state to a gaseous state and be removed from the container.

Step 5: Check and collect

After completing the freeze-drying process, you need to check the candies to make sure they are completely freeze-dried. This may take some time, depending on the type of candy used and the capabilities of the machine. Once the candy has reached its ideal state, it can be removed and stored.