Under normal circumstances, every place has special institutions to detect the contents of various substances in food, but in daily life, when we buy food, we can't always go to these institutions for testing, so we can only find other ways to identify the content of oxalic acid. And for vegetables, different foods contain different oxalic acid content and give people different tastes. The higher the oxalic acid content, the more bitter it is.
You know, oxalic acid is really harmful to the human body, and this harm is mainly aimed at the human stomach. After our stomach has problems, people can also have more problems through various system reactions, so when buying vegetables, people can buy foods with low oxalic acid content, but before buying vegetables, we should know which dishes have low oxalic acid content, so that we can order some dishes in the vegetable market and chew them.
If you don't know the oxalic acid content of various vegetables, you can buy vegetables with high oxalic acid content and cook them in water before eating. If you eat these vegetables with high oxalic acid content, it will do great harm to your health. Therefore, people can identify the oxalic acid content in vegetables by tasting.