1、 Is it acidic or alkaline

Lettuce is an alkaline plant. Whether the food is acidic or alkaline is not based on simple taste or the chemical properties after melting in water. In fact, it is whether the human body becomes acidic or alkaline after eating. It can be seen that people will become alkaline after eating, so it is an alkaline vegetable.

2、 How to save longer

1. Cool preservation: first remove the heart of lettuce, wipe all the water on the leaves, and then merge its leaves together. Put it in a fresh-keeping bag, and then put it in a cool place without sunlight. The temperature during storage should not be too high, otherwise it will accelerate the decay of lettuce.

2. Refrigerator preservation: in fact, putting lettuce in the refrigerator is not the best preservation method. If you want to put it in the refrigerator, wrap it with plastic wrap first, or lay a layer of paper towel on the place where the lettuce is placed, so as to absorb the moisture.

3、 Precautions for storage period

When storing in the refrigerator, do not let the vegetable leaves touch the inner wall of the refrigerator, otherwise they will be frostbitten soon. And the storage time should not be too long, otherwise it will not only reduce nutrition, but also reduce the taste. Also, don't put it with cooked bananas, which will accelerate the decay of lettuce.