③ There are also college questions about picking eggs.Shopping Trolley manufacturer

If you want to buy fresh eggs, you should learn to look at the state of eggshell and yolk.

If the egg is fresh enough, the eggshell is clean, complete, matte, and there is a layer of frost on the surface. Turn on the flashlight of the mobile phone and take a picture, the whole egg will show orange or orange, and you can't see the yolk or only see the shadow of the yolk.

④ Each kind of fruit should be treated differently.Shopping Trolley manufacturer

Different kinds of fruits have different looks, so the methods of judging freshness are also very different.

Like grapes, when fresh, there will be a layer of frost, and the fruit stem is very hard and full; Like apples, pears, oranges and kiwifruit, the texture is hard and crisp when fresh, but it is obvious when it is not fresh, showing water loss and wilting.

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