Specific practice: Peel and core pears and cut them into small pieces for later use. Add a small amount of water, about a bowl of water, boil the pear blocks and crystal sugar with high fire, cook together for 15 minutes, add Lycium barbarum, then simmer for 10 minutes, and let cool. By the way, at first it was cooked with a big fire, and then it was cooked with a small fire.