Frozen Water Chestnut Dices

The production procedure of Frozen Water Chestnut Dices consists of several vital actions to make sure the item is of high quality, well-preserved in nutrients and has a long shelf life.

Control of raw materials is the primary step, thoroughly choosing fresh, plump, pest-free and rot-free water chestnuts. The covering of the water chestnut ought to be dark red brown and shiny, the flesh must be white, crisp and juicy, and of modest size for subsequent dicing.

During the cleaning procedure, wash the water chestnuts with a high-pressure water gun or a big amount of running water to remove surface area sand, pollutants and residual chemicals. After cleaning, rapidly submerse them in a food-grade hydrochloric acid option with a concentration of regarding 2% - 3% for 3 - 5 mins, in order to moderately corrode the epidermis and promote peeling, and then rinse completely with clean water to make certain acid-base neutralization and no deposit.

After peeling, cut the water chestnuts right into consistent dices, with the size generally managed at 0.8-1.2 centimeters on the side. Making use of an expert dicer can make certain uniform dimension. Hand-operated dicing is adaptable yet inefficient and ideal for small set manufacturing. The cut water chestnut dices need to be paled, steamed in boiling water for 2-3 mins, and swiftly removed and put into cold water for air conditioning. This action can not just inactivate enzyme task, protect against oxidation discoloration and preference adjustment, however likewise eliminate several of the rawness and preserve a crisp and tender taste.

In the quick cold stage, spread the water chestnut dices on the conveyor belt of the fluidized bed quick fridge freezer or spiral quick freezer, and freeze them at a low temperature level of -30 ℃ to -40 ℃, so that the water rapidly develops small ice crystals to protect the cell framework. The quick freezing time has to do with 10-15 minutes.

Finally, wrap it with moisture-proof and oxygen-proof plastic film. Vacuum product packaging is much better. Shop the completed product in a cold storage listed below -18 ℃. Inspect the temperature and humidity frequently. The shelf life can reach 12-24 months.