Wanrong Liangfen (cold starch jelly) is processed with sweet potato flour. It is usually soft and chewy, cool and refreshing, served with bright red chili oil, persimmon vinegar (or rice vinegar), mixed with raw garlic, mustard, pepper and other condiments. Spicy and sour, the more you eat it, the more you enjoy it. Even on a snowy day in the twelfth lunar month, you will sweat when you eat Wamgrong Liangfen.