The reasons why the cake can't ferment up properly:
1, first of all, the rice cooker doesn't distinguish between bottom and top, and in this respect it doesn't ferment up as well as with the oven.
2, and the way you do it also has a relationship. If you're making a chiffon cake, having a little bit of oil will also have an effect on the rise of the cake.
3, If it's a cake with whole eggs, not adding cake oil and baking powder will affect the rise.
4, if the cake flour is not low gluten, high gluten will also affect the rise.
Cake is an ancient pastry, usually made by the oven, the cake is made with eggs, sugar, wheat flour as the main ingredients.
Milk, juice, milk powder, spices, salad oil, water, shortening, baking powder as secondary ingredients. After mixing, modulation, baking to make a sponge-like confectionery.
A cake is a type of pasta, usually sweet, typically made by baking. The main ingredients of a cake include flour, a sweetener (usually cane sugar), a binding agent (usually eggs, which can be replaced by gluten and starch for vegetarians), shortening (usually butter or margarine, and fruit juice concentrate for low-fat cakes), a liquid (milk, water, or fruit juice), flavoring, and a leavening agent (e.g., yeast or baking powder).