How to burn the hearth of the newly bought muffle rauv for the first time so that it will not crack?

The first use of the newly purchased muffle furnace must be the oven, otherwise it will cause cracks in the furnace!

In addition to preventing the furnace from cracking and protecting the furnace, the muffle furnace can also increase the uniform heating of the electric furnace and protect the heating elements.

The furnace and insulation layer of the new muffle furnace require a drying process. High-temperature electric furnaces that are not used for a long time, the furnace and the insulation layer will absorb moisture. When used directly at high temperature, the water vapor will not be discharged in time will affect the insulation effect of the furnace, and sometimes it will cause The furnace is cracked.