Soak the cabbage in salt water for 5- 10 minutes before washing, which can effectively remove the bugs inside, then cut it with a knife and put it in water for cleaning.

Supplement:

Cabbage is an annual or biennial herb of Brassica in Cruciferae, and it is one of the important vegetables in China. Except for Chinese kale, which originated in China, all varieties of Chinese cabbage originated from the Mediterranean Sea to the North Sea coast. As early as 4000 ~ 4500 years ago, it was cultivated in ancient Rome and ancient Greece.

Herbs biennial or perennial, about 60- 150 cm tall. The lower leaves are large, the big head is pinnately parted, up to 40 cm long, with colorful veins and stalks; The top lobe is large, round at the top, heart-shaped at the base, wavy at the edge, with crenulate teeth, 3-5 pairs of top lobes, obovate, the upper leaves are oblong, full, fleshy, hairless and frosty.

Racemes as long as 30 cm or longer in fruit; The flowers are light yellow, with a diameter of 10- 15 mm; Sepals oblong, erect, 8- 1 1 mm long; Petals obovate, long 15-20 mm, with rounded tips and claws. Silique is cylindrical, 5- 10 cm long; The beak is 5- 10 mm long and seedless; Pedicel about 2 cm long; Seeds spherical, about 2 mm in diameter, grayish brown.