You don't need to blanch beef first. Instead, the beef (pig and sheep) is sliced and marinated with salt, soy sauce, cooking wine, tender meat powder or papaya juice and starch. About half an hour. Just stir-fry directly. If it is fried with celery and other vegetables that take a long time to be cooked, you need to cook celery and other vegetables first, or take out the sliced meat (shredded meat) after frying celery and other vegetables, and then add the oiled sliced meat (shredded meat) and stir it evenly and immediately take it out of the pot. Different meat dishes have different cooking methods, and if you cook too much, you will naturally master the tricks.

Roasted chicken legs are different, because they are too big to be fried thoroughly before cooking. If it's fried spicy chicken or braised chicken nuggets, you don't have to blanch it first.

Don't worry, as long as you like cooking and are good at learning, you will become a master cook in time.