Instruments: potatoes, green and red peppers, garlic, dried chili peppers, scallions Step 1: Potatoes cleaned and peeled, cut potatoes with a knife into a fine silk (afraid of trouble if you use the rub rub into the wire), with a knife cut potatoes with a knife and with a rub potato wire, what is the difference between it? The real foodies feel that cut with a knife than with a rub rub to be tasty, this and hand-torn cabbage a reason, we fried cabbage, cut with a knife and hand-torn, hand-torn cabbage taste is to feel good into the flavor a little. Can't say what reason, also don't know what reason, this is the experience of most people practice. After the potatoes cut into silk, the next focus came, this time, we do not blanch, but the potato silk into the water, add the right amount of white vinegar, this is the key to frying the potato silk, soak with water and edible vinegar can make the starch loss of potatoes, frying potatoes will not stick to the pan, but also make the potato silk more crispy and more acidic. The difference between soaking in vinegar and soaking in salt is that vinegar prevents the loss of nutrients in the potatoes and prevents oxidization and blackening of the potato shreds, making them crispier and more flavorful. Soak the potatoes for 5 minutes. 5 minutes later, remove the potatoes from the water and set aside. Step 2: Prepare the appropriate amount of dried chili, ginger slices, garlic slices, scallions cut into segments, green and red chili pepper cut into julienne Step 3: Boil water in the pot, after the water boils, the shredded potatoes into the blanching again, blanching potatoes after frying up more crispy. Potato wire into the water after the water boiled quickly after the water out, rinse cool water, so as to save the crispness of the potato wire. Hot pot of oil, oil temperature 5 into the heat of the green and red pepper wire into the slightly stir-fried, into the potato wire, open high heat and quickly stir fry evenly, and then remove from the fire to start seasoning: add the right amount of salt, a little chicken essence, open high heat, quickly stir fry them evenly, you can put out of the pan on the plate. You can add some green onions to garnish, or not. This spicy and flavorful, appetizing and delicious hot and sour shredded potatoes are ready, very tasty, simple home cooking, like you also try it. Summarize: 1. Potato wire first do not blanch, put the water with a little vinegar soak for 5 minutes, so as to ensure that the potato wire crisp not oxidative discoloration, but also to prevent the loss of nutrients in potatoes, fried non-stick pan. 2. potato blanching points, the water boiled the potato wire into the water boiled after the water quickly control water out, and then rinse with water, which will ensure that the potato wire taste crispy.