What is rosin? Can edible rosin be used to return pig hair?

Edible rosin (edible rosin glyceride) is made of refined rosin and edible glyceride. The particles are transparent and yellowish or yellowish, and the smell is small after melting. Food-grade rosin glyceride meets the national standards GB 10287-88 and GB2760-86, and can be safely used in food. It has excellent emulsifying and tackifying properties, and can be used as a gum base to make chewing gum foam, swell, chew-resistant and taste good. Description: Edible rosin glyceride is a light yellow transparent solid. Main uses: As the basic agent of chewing gum, it endows chewing gum with foaming, plasticizing and chewing resistance. Used in bubble gum, chewing gum and sugar-free chewing gum, it has good taste, oxidation resistance and keeps soft. It can also be used as emulsion stabilizer in beverages. It is generally recommended to scald pig hair with boiling water, which will be scraped off smoothly (skilled butchers do well). If you want speed and cleanliness, you can use rosin or asphalt. First, melt the rosin and stick it on the place where plucking is needed. After cooling, take out the rosin. Very clean. I'd like to mention here that rosin has been used to remove hair from pig heads in China for a long time, and some people use cheaper asphalt. But both materials are toxic, and now people are forbidden to do so by law. Regular factories generally use edible rosin.