【沪江慢速VOA】3月1日: 食品保鲜新方法(2)

How to Help Foods Keep Their Cool (2/2)

The British development group Practical Action says the best way to prepare foods for storage is at harvest time while still in the field. Use a sharp knife to avoid damage.

Place the harvested items on a clean surface or directly into storage containers. Do not put them on the ground. Use clean water to remove dirt, and keep the water clean. Usually it is better not to remove outer leaves from fruits and vegetables before storage. Without the leaves, food can become dry.

Fruits and vegetables must be cool from field heat before they are put into storage. If they are placed in cool water, however, it can spread fungus throughout the food. A better idea is to harvest foods either early or late in the day, then leave them to cool naturally.

Some fruits and vegetables must be stored at 0 to 4 degrees Celsius. Any colder, and they might be damaged. Others need 4 to 8 degrees. And still others must be stored above 8 degrees.

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