This method is also practical and has the longest storage time. First, we can prepare a plastic bottle, then cut the plastic bottle in half and put some soil at the bottom of the plastic bottle (if there is no soil, it is ok to put some absorbent paper towels). The soil should be sprayed with water to keep it moist, and then we should not pick the leaves of the green onions, but let their roots directly contact the soil at the bottom of the plastic bottles, so as to ensure the water supply of the green onions. This method preserves green onions, which are fresh and green after eating in the New Year. What we should pay attention to is to keep the soil moist.

The second way to preserve green onions

We can wash the green onion and then remove the yellow leaves on its surface. Then we cut it into small pieces. After cutting into small pieces, we put the green onions in a fresh-keeping bag, squeeze out the air in the bag and seal the mouth of the bag. Next, we put such fresh-keeping bags in the freezer. This method can also effectively preserve green onions. When we want to eat, we can take it out and use it as much as possible, and continue to put it back in the freezer.

Utilization of Welsh onion roots

We don't want to throw away the onion roots. If there are idle flowerpots at home, we can plant green onion roots. As long as the daily water supply is guaranteed, the green onions grow quickly. As the picture shows, two green onions on one side were planted a week ago. After we plant this green onion, it will soon grow new green onions, which can also be said to be a kind of waste utilization. When we plant a full plate, we can harvest a considerable amount.