What is the production process and process of freeze-dried apple slices?

Freeze-dried apple slice is a kind of apple slice made by vacuum freeze-drying technology, which has a crisp taste and retains the original nutrients of the apple. The following is the production process and process of freeze-dried apple slices:

1. Prepare the ingredients

The raw materials for making freeze-dried apple slices need to choose fresh, mature, disease-free apples, and those with good varieties, crisp taste and high nutritional value are preferred.

2. Wash and remove skin

Clean the apple, remove the skin and core, and get a clean apple pulp.

3. Slice

Cut the apple flesh into slices about 0.5 cm thick, and try to keep the size uniform, so as to facilitate subsequent processing.

4. Pretreat

Put the cut apple slices into the antioxidant solution immediately to protect the color to prevent the fruit from discoloration due to oxidation. Commonly used antioxidants include vitamin C, tea polyphenols, etc.

5. Vacuum freeze drying

Put the apple slices into the freeze-drying bin of the food vacuum freeze-dryer for pre-vacuum freeze-drying. The temperature in the freeze-drying warehouse is set at about -30 ° C, so that the water in the apple slices quickly freezes into ice. Then, under vacuum conditions, the ice is sublimed directly into water vapor and walked away, so that the apple slices are stripped of water, and crisp freeze-dried apple slices are obtained.

6. Pack

Remove the freeze-dried apple slices from the freeze-dried bin and seal them. Vacuum packaging machines are generally used for packaging to maintain the dry state of apple slices and prevent air oxidation. Packaging materials generally use food grade polyethylene or polypropylene film.

7. Store and carry

Freeze-dried apple slices can be stored at room temperature for months or even years without refrigeration. If you want to carry out or travel, just sealed packaging can be carried, very convenient.

In summary, the production process and process of freeze-dried apple slices include preparing raw materials, cleaning and peeling, slicing, pre-treatment, vacuum freeze-drying, packaging, storage and carrying steps. This method preserves the original nutrients and crisp taste of apples, while being easy to carry and store, making it a healthy and delicious snack choice.