Add the bittern to the pot or barrel, and you can make your own bittern. 2 barrels of clear water, 500g of ginger, 3kg of pig bones, 2 chicken racks and half a catty of ducks. Cook the duck with strong fire, remove the foam, reduce the fire 1h, cut the pig's head in half, add brine, add spices, 50g star anise, 50g pepper, 20g fennel and 20g tsaoko. Fragrant leaves 10 tablet, dried tangerine peel15g, clove10g, Amomum villosum 20g, piper longum15g, galangal15g, licorice 20g and pepper 50g.
Take out the pig's head, take out the pig's bone with clean pliers, then add brine and low-fire brine, add sugar color, marinate for about 1 hour, don't take it out, leave it for half an hour, slice the marinated pig's head, and add shallots, garlic juice, vinegar, sesame oil and coriander.