1. The cake is not cooked: Generally, it takes about 40 minutes to make a rice cooker cake. If the heating time of the cake is not enough, or it is not fully heated, it will shrink after it is done. Therefore, before making The cake needs to be thoroughly steamed.

2. The heating time is too long: The heating time is too short and the cake will shrink, but the heating time is too long and the moisture in it will be lost. If the cake is too dry, it will also shrink.

3. Uncover the lid when heating: Some people are curious and will open it from time to time when heating the cake. However, if the cake suddenly comes into contact with cold air, it will expand and shrink due to heat. .

4. The batter is not stirred evenly: If the batter is not stirred thoroughly before pouring into the rice cooker, causing the heavier ones to sink to the bottom and the smaller ones to float, the resulting cake will also shrink.

5. Failure to invert the cake immediately after taking it out of the pan: After the cake is ready, it should be inverted immediately and the cake should be taken out. If the cake is not inverted immediately, the temperature on the surface and inside of the cake will suddenly drop. Retraction occurs due to decline.