Unlike regular earthenware pots, what difference in cooking does the notice stating 'heating an empty pot' is possible make?

Heating an empty pot refers to a cooking method where the vessel itself is placed over fire and heated to high temperatures without water or ingredients. Generally, when ceramic directly touches fire in a moisture-free state, it cannot withstand the uneven thermal expansion in different parts and is prone to cracking. The roast earthenware pot from Igamono is made to endure such thermal shocks, allowing for cooking methods where it is heated first without adding oil or broth before stir-frying or roasting ingredients^[1].

Its usability expands further over fire. Placing the grill net included in the basic configuration on the bottom completes dry direct-fire roasting, browning roasted sweet potatoes, rice cakes, or vegetables without sticking to the bottom^[2]. Furthermore, even the lid is crafted to withstand direct-fire use, allowing it to be placed directly over fire outdoors or in the kitchen to be used like another shallow roasting pan^[3].