2. After soaking, boil the water in the pot. After the water is boiled, put the potatoes in and cook them. Be careful not to cook for too long. Cooking for too long may break potatoes and affect the taste. It takes about three minutes to get them out. After the potatoes are fished out, they can be quickly cooled by supercooling, which can make the fried potatoes very crisp. Put the washed potato chips back on the plate, dry them, then cover them with plastic wrap and put them in the refrigerator for two hours. You can't go on to the next step until the potato chips are hard. It is very important to pay attention to putting potato chips in the refrigerator. Many people ignore this step, so the potato chips are not crisp enough.
3. After the potato chips become hard, you can start making French fries. Potatoes are coated with starch and fried in 5% heat until golden brown. After the potatoes are fried for the first time, you'd better fry them again. The French fries made in this way are crisp and delicious, and can be eaten with delicious tomato sauce.