Which is better, casserole soup or rice cooker soup?

I think casserole is good because it is made of clay, feldspar, timely and other natural products. The inner wall of the finished product has many micropores, good air permeability, strong adsorption and uniform heat transfer. It can continuously and evenly transfer heat to the inside of raw materials, so that the raw materials can overflow fresh and fragrant substances to the maximum extent, and nutrients will not be lost.