Advantages: fast heat transfer, slow heat dissipation and strong heat preservation ability. Generally, the food in a casserole can keep close to boiling heat for 5 to 10 minutes. Casserole can transfer the external heat energy to the internal raw materials in a balanced and lasting way. A relatively balanced ambient temperature is conducive to the mutual penetration of water molecules and food, and can release the taste of food to the maximum extent.

Disadvantages: The enamel of the casserole contains a small amount of lead, so it is best to soak the newly bought casserole in vinegar and boil it first, so as to remove most harmful substances. The inner wall of the casserole is colored, so it is not suitable to store wine, vinegar, acidic drinks and food.