It depends on how your trotters are, because the trotters of old pigs usually take at least four or five hours to cook completely, while those of young pigs usually take two hours.

There are a lot of collagen in pig's trotters and pigskins, which can be converted into gelatin during cooking. Gelatin has a reticular spatial structure, which can combine a lot of water, enhance the physiological metabolism of cells, effectively improve the physiological function of the body and the water storage function of skin tissues and cells, moisturize cells, keep them moist, prevent premature skin wrinkles and delay the process of skin aging.

Pig's trotters have a certain auxiliary effect on patients with recurrent limb weakness, leg cramps, numbness, gastrointestinal bleeding, hemorrhagic shock and cerebral ischemia. It is also suitable for the elderly after major surgery and recovery from serious illness.

It is helpful for the growth and development of teenagers and slows down the rate of osteoporosis in middle-aged and elderly women. According to traditional medicine, trotters have the functions of strengthening waist, nourishing knees and promoting lactation, and can be used for soreness of waist and knees caused by kidney deficiency and postpartum hypogalactia.