It is highly recommended: when roasting in the countryside, wrap the sweet potato in tin foil and put it into the charcoal fire at the bottom of the furnace. Then you don't have to worry about it. Eat the barbecue first. After the meat is finished (about 30-50 minutes later), remove the sweet potato from the bottom of the furnace and wrap the tin foil. You can enjoy it afterwards, and the taste and taste of the dessert after the barbecue in the suburbs is superb! Because it is wrapped in tin foil, the sweet potato is evenly heated, and there is no case where the outer layer of the outer layer is not cooked.