The sponge cake is made of low-gluten flour. Because the low-gluten flour has no strength, the cake made of it is particularly soft, bulky and flat. Low-gluten flour is similar to cake flour and pastry flour in daily life, but in addition to low-gluten flour, cake flour also contains wheat starch and emulsifier. Low-gluten flour refers to flour with water content of 13.8% and coarse protein content of less than 9.5%, which has the functions of nourishing heart, tonifying kidney, removing heat and quenching thirst.
The differences between low-gluten flour and ordinary flour are: different raw materials, different gluten content, different protein and different colors.
Different raw materials: the raw material of low-gluten flour is white soft wheat, and the raw material of ordinary flour is ordinary hard wheat.
The gluten content is different: the gluten content of low-gluten flour is 22%-26%, and that of ordinary flour is 29%-32%.
protein is different: the protein content of low-gluten flour is less than 8.5%, and the protein content of ordinary flour is 8.5% to 1%.
different color: the color of low-gluten flour is whiter than ordinary flour.