It is no problem to expand the information that the small oven is on fire. Therefore, there is only one temperature control knob.
However, in order to meet the requirements of production rate, a large oven has a large space and high power, so it must be divided into upper and lower fires, that is, the set temperature of the heating tube on the top wall of the oven and the set temperature of the heating tube on the bottom of the oven. Only in this way can the color browning reaction on the surface of the cake be adapted to the internal ripening degree during baking, so as to avoid the ripe cake without attractive golden yellow surface.
The capacity of electric ovens generally ranges from 9 liters to 60 liters, so the purpose of buying electric ovens must be fully considered when selecting capacity specifications. The lower the power, the better. The higher the power, the faster the temperature rise and the less the heat loss, but it will save electricity. Household electric ovens should generally choose 1000 watts or more.