How high is the temperature of the porridge for takeaway?

The temperature of take-away porridge is 48 ~ 54 degrees Celsius. According to the previous scientific research on fast food enterprises, the temperature of meals and porridge during delivery is 48 ~ 54 degrees Celsius, and the temperature should be increased in summer. Just cooked rice porridge, the highest can reach 100 degrees. But when the lid is opened, the rice porridge on the surface is estimated to be between 89 and 92 degrees, and the temperature of the rice porridge inside will be higher, about 95 to 98 degrees.