Chives are not only nutritious but also have auxiliary therapeutic effects on various diseases such as high blood pressure and high blood lipids. However, they are very prone to pests during their growth. As a result, many farmers use the "root drenching growth method," directly pouring pesticides into the soil along the chives' roots. Consequently, chives have become a "hard-hit area" for pesticide residues. The same is true for cilantro. In the past, cilantro was generally only as long as a palm and took half a month to grow. Now, cilantro is several times longer than before but has a growth cycle of only 3 days, which is also the result of using the "root drenching growth method." Therefore, nutrition experts recommend that when citizens choose these two vegetables, it is best to select the shorter ones, and when consuming them, they must cut off at least half an inch of the roots, as the roots are the part with the most pesticide residue.