When buying tomatoes, you should choose the kind that is round and smooth in appearance, smells the unique aroma of tomatoes and feels heavy in your hand. The description of the blue pedicel is immature, so don't buy it. Squeeze tomatoes by hand, the skin is thin and elastic, and the good tomatoes are firm and not soft to the touch.

If the circle is small, it means that there is less muscle, more water and full flesh, which is more delicious, while the tomato with a big circle at the bottom has more muscle and is not delicious. Completely green tomatoes are not ripe yet. It doesn't matter if most of the tomato surface is red and only a small part is green.

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There are many varieties of tomatoes, with great differences in color, size, taste and nutritional quality. The content of carotene in orange tomatoes is relatively high, while the content of lycopene and carotene in pink tomatoes is not high. Light yellow tomatoes contain a small amount of carotene and almost no lycopene. Generally speaking, the redder the color and the higher the maturity, the higher the lycopene content and the stronger the anticancer effect.

It should be noted that immature tomatoes should not be eaten because they contain an alkaloid component, commonly known as lycopene. Excessive consumption may lead to poisoning, dizziness, nausea, vomiting, fatigue and other symptoms. The lycopene content will gradually decrease with the continuous maturity of tomatoes, so fully mature tomatoes can be safely eaten.

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