The ancient Chinese kitchen was a bustling place, filled with various cooking techniques and tools. While they didn't have a built-in outdoor kegerator, they had a unique way of keeping their beverages cool. Chinese kitchens often had a special type of ceramic jar called a 'yuhuchun' or 'wine jar.' These jars were designed with a double-walled structure, allowing for the storage of beverages while keeping them cool. The outer wall of the jar would be filled with water, and as the water evaporated, it would create a cooling effect, keeping the beverages inside the jar chilled.