In life, only by following the principle of matching meat and vegetables can people achieve a balanced and reasonable diet. This can not only supplement the nutrition that the body needs, but also make the body healthier. Vegetables are common ingredients in life, but they must be blanched before cooking. This will keep the vegetables green. It can also prevent a large loss of nutrients. The oxalic acid content in some vegetables is relatively high, and only after blanching can the oxalic acid content be effectively reduced. For example, spinach and water spinach, if not blanched, direct frying is likely to affect the body's absorption of calcium.

Because the vitamin C content in vegetables is still relatively rich, if fried directly, it is likely to lead to a large loss of nutrition. Then, after the blanching step, the nutrients in the vegetables can be effectively retained and the loss can be avoided. And many people will find this phenomenon when cooking. If you fry vegetables directly without blanching, they will turn yellow easily. It can effectively keep vegetables green after blanching.

So the fried food will look better in color and make people want to eat. Moreover, the dietary fiber content in vegetables is still relatively rich. For example, cauliflower and broccoli, which are common in life, are not easy to cook if they are directly fried. Blanching can speed up the ripening time of vegetables, so people should also blanch. But also easy to digest and absorb, and there will be no indigestion. When frying spinach, bamboo shoots and water spinach, most of them need to be blanched.

Because the oxalic acid content in these vegetables is still relatively high, if not blanched, it will affect the absorption of calcium and magnesium by the human body. But also lead to the accumulation of oxalic acid and the formation of crystals in the body, thus leading to the emergence of kidney calculi. Some vegetables stored for too long will produce a lot of nitrite. As we all know, nitrite is a carcinogen. Then blanching can effectively reduce the content of nitrite, so it is beneficial to human health.