Cold storage and preservation technology of garlic moss

The cold storage technology of garlic moss includes harvesting, screening, precooling operation and temperature and humidity control.

1, the harvest is important

In order to better store and preserve garlic moss, it is advisable to harvest garlic moss at noon on sunny days. It is forbidden to harvest garlic moss in rainy days or when there is dew, and avoid exposure to the sun after harvesting.

2. Screening and classification

After harvesting, classify garlic moss according to maturity, and remove diseased, swollen, faded and scratched garlic moss.

3, precooling operation

In order to ensure the fresh-keeping effect of garlic moss in modified atmosphere storage, garlic moss must be precooled before storage, and forced air precooling is suggested. When the precooling temperature of garlic moss drops to 65438 0℃, the fan can be turned off to stop precooling. Note that the pre-cooling time should not exceed 48 hours.

4. Temperature and humidity control

The suitable storage temperature of garlic moss is-1~0℃. It should be noted that the temperature in the warehouse is stable, neither too high nor too low. If the temperature is below -2℃, frostbite or chilling injury will occur. Excessive temperature will accelerate the growth of garlic moss, and condensed water will lead to rot. The relative humidity in the warehouse should be controlled at about 90~95%, the oxygen content in the warehouse should be kept at 2%~5%, and the carbon dioxide should be kept at 0~5%.

Matters needing attention in preservation of garlic moss

1, salting preservation method

We should rinse the prepared fresh garlic moss with clear water, then dry it, and then put it in a ventilated place to dry its surface moisture. After garlic moss is dried in water, we should cut it and add salt to kill water, or add salt to kill water directly.

2. Cold storage method

For the prepared garlic moss, clean it with clear water first, then cut it off, and then prepare a pot of clear water. After the fire boils, put the garlic moss in the pot and blanch it. When scalding garlic moss, remember to add proper amount of salt and cooking oil so that garlic moss will not change color. Blanch until it is half cooked, and take it out after controlling the water.