Prepare clean water, add proper amount of salt, and keep the water-salt ratio at about 20: 1. Stir until the salt is completely melted, soak the ginger in salt water for about 20 minutes, then take out the completely dry surface moisture in a cool place in a ventilated place, wrap it tightly with plastic wrap, and store it in a refrigerator or a cool and ventilated place.

Soaking in salt water can sterilize and delay the decay of ginger. When operating, be careful not to break the skin of ginger, otherwise it will be easily broken.

Method 2: Block freezing method

Ginger can't be put directly in the freezer, but it can be put in the freezer. We will cut the ginger into small pieces, then wrap each piece with plastic wrap and put it in the freezer for quick freezing, so that we can take a small piece when we want to eat, instead of cutting a whole frozen ginger.

Ginger rots easily when the humidity is high. Freezing can temporarily stop the water activity of ginger. Wrapped in plastic wrap, it can isolate the external moisture and keep the internal moisture from losing. At the same time, it can prevent the odor of ginger and the pollution to other ingredients.

Method 3: Buried sand preservation method

Ginger comes from the soil, so we will keep it in the soil. But in order to control the moisture better, we should choose semi-dry and semi-wet sand. Also, don't buy ginger with broken skin, and don't wash it specially. If the skin of ginger is wet, put it in a cool and ventilated place to dry the surface and then bury it in semi-dry and semi-wet sand.

Method 4: plant ash preservation method.

In the past, people in rural areas used this method to preserve ginger and buried it with burnt plant ash. In this way, plant ash burned at high temperature has been well disinfected. plant ash will not isolate the circulation of air, but it will control the humidity well, prevent the water loss of ginger, keep the skin dry, and prevent ginger from rotting and drying.

It should be noted here that the surface of ginger should be kept as dry as possible, just like the method of burying sand to keep fresh. Newly bought ginger can be dried in the shade for 3 to 5 days, so as not to damage the ginger skin and improve the success rate of ginger preservation.