Why should the charcoal tray not be washed with water after using the mini water grill?

When packing up a grill outdoors, the first place your hands reach is the inside of the firebox where the charcoal was burning. The mini water grill from Igamono consists of four parts: the main body, charcoal tray, grill grate, and base^[1]. Even if you wash the grease-splattered grill grate or main body with water after a meal, the tray that held the charcoal must not be washed with water^[2].

Do not put it in water. Ceramic parts that directly support charcoal have microscopic pores that absorb moisture easily, and if they come into contact with fire again while holding moisture, they are prone to cracking from the inside out and breaking. Sudden temperature differences that occur when cold water touches it while it has not yet fully cooled down are also a cause of breakage.

Therefore, after the fire is completely extinguished and the residual heat has cooled, simply dusting out the remaining ash is sufficient. Soot on the outer surface should be lightly dusted off with a dry brush or a dry cloth, and storing it in a place free from moisture will allow you to use the grill for a long time.