1, the pig big oil clean, cut into small pieces, small and medium fire boil, with a spatula in the pot to stir.

2, when boiling, properly change to high fire for another 5 minutes, turn to small fire refining about 20 minutes, when the oil becomes clear, with the smallest fire.

3, there is basically no water rising, the oil is also particularly bright, the oil residue is also slightly yellow, you can scoop out the oil, and leave it to cool.