Under normal circumstances, porridge shops cook porridge every morning, because they are afraid that porridge will not sell well when it gets cold, so they pour it into a heat preservation bucket to keep warm.

However, porridge shops also have cases where cooked porridge cannot be sold on the same day. Good merchants will dump the leftover porridge for the safety of diners.

And some unscrupulous merchants will mix the leftover porridge into the freshly cooked porridge. So the porridge cooked in the porridge shop is only hot, not necessarily fresh. You should be clear about this.