1. Material selection: healthy pigs that have passed quarantine inspection are selected as raw materials, and sows and pigs with skin diseases are not allowed to be bred.
Second, perm and shave: adopting a good hair removal method can ensure the cleanliness of pigskin and reduce the residue of hair and hair roots. Therefore, the method of unhairing after soaking in scalding pool is usually adopted. It is proved that the water temperature in the scalding pool is 48 ~ 60℃ and the soaking time is 5 ~ 7 minutes. When scalding, the carcass should be turned constantly to make all parts heated evenly to prevent scalding and aging. When scalding pigs with scalding machine, only one pig is put in each stall to avoid mutual extrusion and uneven heating on the body surface, which will affect the scalding effect. After the carcass is fully scalded, it should be shaved quickly and as clean as possible. When using the hair beating machine, the bath water temperature in the machine should be controlled at about 30℃, so as not to hurt the subcutaneous fat.
3. Skinning: Clean the carcass surface before skinning, so as not to damage the skin during skinning. Therefore, mechanical peeling is usually used, which can reduce damage, uniform thickness and reduce subcutaneous residue.
4. Molding and packaging: cut the precooled pigskin into sizes not less than 10 m× 25 cm, quantitatively package 1×20 kg of snow or 1×25 kg of snow, line it with plastic film, and pack it in cartons.
Verb (abbreviation of verb) pigskin preservation: It can be preserved at-18℃ 10 month.
The normal pigskin after processing has the following characteristics: the skin is white and shiny, and the pores are thin and deep; Hair removal is complete, without residual hair and hair roots; No skin damage and dermatosis; No subcutaneous tissue, clean fat; Good molding; After cooking, the color, fragrance and taste are normal, the taste is soft and the toughness is good. The broth is transparent and clear, and it is colorless jelly after refrigeration.
Supplement:
pigskin
Main efficacy: Increase skin elasticity Pigskin is something that many MM don't like to eat. In fact, pigskin will not gain weight after eating, which is very good for beauty. Pigskin is rich in nutrition, with protein 1.5 times, carbohydrate 4 times and fat 79%, which is similar to lean pork. It is reported that pigskin is also rich in collagen, which can promote growth and development, delay human aging and fight cancer. For girls, it can reduce fine lines and increase skin elasticity.
■ beauty DIY
Pigskin jelly
Ingredients: pigskin, star anise, ginger slices, cooking wine.
Put pigskin and ginger slices into boiling water, add a little cooking wine and cook for 3 to 4 minutes. When the skin is cooked, drain the water, scrape off all the fat on the skin with a knife, then cut it into small strips and throw the cut skin into the water. Boil two star anise and two slices of ginger in medium fire until the ratio of peel to water is 1: 1, and then apply some oil to make it slowly freeze.
skill
Some pigskin will have a blue print after quarantine, which is difficult to clean, and the color used for cooking also affects appetite. Spread the edible alkali evenly on the seal, and after a few hours, most of the traces of the seal will disappear except for the deeply printed part.
Beauty food
Pomelo peel
Main efficacy: clearing fire and removing acne. Clearing heat of grapefruit is mainly clearing lung fire. As we all know, the most prominent manifestation of lung fire is acne on the face, which is a big taboo for MM. Every 100g grapefruit contains 0.7g protein, 0.6g fat and 57k calories. Natural fruit fiber and vitamin C are the best products for slimming, beautifying and keeping skin tender. In fact, the grapefruit peel that we usually throw away also has the effect of beauty. The white pulp of grapefruit peel can not only reduce the fat content of dishes, but also dissolve greasy food. Eating grapefruit skin with seafood is a new way to eat recently.
■ beauty DIY
Pickled pomelo peel
Ingredients: grapefruit, garlic, seasoning
Cut the pomelo peel vertically into five boat shapes, take out the pulp of the pomelo, peel off the bluish-yellow surface layer of the pomelo peel, leaving a white "cotton wool" inner layer, boil it in clear water for about 10 minute, then squeeze the pomelo peel dry and cut it into cucumber strips. Stir-fry garlic slices, stir-fry pomelo strips, add salt, monosodium glutamate and soy sauce, add water, cover the pot and cook for 5 minutes.
skill
People with grapefruit body cold and spleen deficiency should not eat more, and it is best to control eating about 50g every day. Some MM like pomelos that are relatively flat, but in fact, pomelos with spots are sweeter.