Pickled mustard will not make people get angry, mainly because it is a cooling food.

Pickled mustard is a common pickle. It is a semi-dry, non-fermented pickle. It is usually pickled from the stems of mustard greens.

Plants belonging to the Brassicaceae family are often covered with simple hairs, bifurcated hairs, stellate hairs or glandular hairs. Flowers bisexual, usually in racemes; sepals 4, separated, in two whorls; petals 4, clawed, arranged in a cross-shaped corolla, a few have no petals (such as Lepidium, apetal); 6 stamens, 2 whorls, 2 outer whorls are shorter, and 4 inner whorls are longer, called the four strong stamens; 2 carpels, connate, 1-chambered ovary, with lateral membrane placenta, central false septum, divided into 2 chambers, each chamber usually has multiple stamens Ovule. Fruits are siliques. Those whose length and width are nearly equal are called short siliques, and those whose length is several times the width are called long siliques. For example, shepherd's purse and lepidium are short siliques, and cabbage and radish are long siliques. There are about 350 genera and 3,000 species of plants in this family, which are widely distributed all over the world. There are 90 genera and 300 species in my country, with the largest number in the north and northwest.

The mature stem tuber mustard before bolting has a height of 60-80cm above ground and a main root length of 20-30cm in the underground part. The whole plant generally weighs 2-4kg. The lower part of the above-ground part is a hypertrophied tuber stem, with more than ten large leaves growing on the stem; the petioles of the large leaves have tuber-like fleshy stems at their bases, and there are usually 3 to 5 obvious tuber-like protrusions. The skin of the tumor stem is green and smooth, and the meat under the skin is white and plump, with a tender and crisp texture. The tuber part, that is, the cabbage head, generally weighs about 0.5kg each, and the larger one weighs 1 to 1.5kg. The cooked green cabbage heads are very delicious when mixed with seasonings; the cooked soup has a chicken soup-like flavor. The kimchi made from green cabbage heads looks tender, crisp and unique