The first trick is to choose ingredients. Stewed pig bones, pig bones must be very fresh, stale pig bone soup is not fresh, and even has some peculiar smell, which greatly reduces appetite. Choose fresh pig bones and make them in 3 steps. First, take a look. Fresh pig bones are bright red in color, and purple ones have been put for a long time; Second, touch it. Pressing pig bone can quickly restore its original state, fresh but not sticky; Finally, smell it. Don't buy anything that smells other than fish.

The second trick, flying water. Flying water is actually similar to boiling water. After buying pig bones, soak them for a while, pour out the blood, and then rinse them off. After that, it is very important to put the pig bones in hot water for 2-3 minutes to remove the foam from the water. Otherwise, it will affect the delicious soup.

The third measure is to choose the right soup pot. Pressure cooker or casserole is more delicious. Anyone who has cooked lotus roots in a pressure cooker knows that the cooked lotus roots are particularly loose and powdery. If not, use a casserole, and the purple casserole is very suitable for stew.