Between Zhongxiang and Tianmen, there are several towns where rice tea is popular in summer. Does that friend know his origin?

The Ming emperor Jiaqing was born in Zhongxiang. One summer, he went back to his hometown to visit Duobao who passed by Tianmen. The weather is extremely hot, and the imperial edict requires that food can quench thirst and fill the stomach for one minute. A chef in Duobao racked his brains and was puzzled. While cooking, he looked at the water and burnt the rice in the pot. I have no choice but to cook and eat by myself. Eat, hey, quench your thirst! So I boiled it and gave it to the emperor. As soon as the emperor had a good sleep, he praised Shang and asked the chef what this dish was. The chef said it was rice tea.