1, look at the color
Prevent the fire from exploding and prevent the fire from being blown up.
2, look at the appearance
Turn it over and see if it is evenly fried. If there is any unexploded place, the joint between the cooked meat and the bone will show signs of shrinkage.
3, see the time
Different meats will have slightly different cooking times, fish and chickens and ducks will be faster, pigs, cattle and sheep will be slightly slower.