1, the temperature of the oven can be adjusted to a temperature range suitable for air drying. If the oven cannot be adjusted to a suitable low temperature between 35 and 40 degrees Celsius, it will overheat, resulting in casing rupture or uneven air drying.

2. Air-drying requires proper ventilation and humidity control, so that the casing can be evenly dried without mildew. When air-drying in the oven, a certain vent can be left, or a gap can be left on the oven door, so that moisture can be released. At the same time, some humidity regulators, including edible salt or silica gel bags, can be placed to help control humidity.