1. Sweet potato starch:

It is a powder made of sweet potato starch.

2. Corn starch:

It is made by soaking corn with 0.3% sulfurous acid, crushing, sieving, precipitating, drying and grinding. ?

3. Potato starch:

It is made of potatoes, including potato skins, cooked, dried and finely ground.

Second, the viscosity is different

1, sweet potato starch:

The viscosity is lower than potato starch and higher than corn starch.

2. Corn starch:

The viscosity is lower than that of sweet potato starch and potato starch.

3. Potato starch:

The viscosity is higher than that of corn starch and sweet potato starch.

Extended data

The viscosity of potato starch depends on the polymerization degree of its amylose. The paste viscosities of potato starch, corn starch, oat starch and wheat starch were compared. The experimental results showed that the amylopectin content of potato was above 79%, and the average peak value of potato starch was 2988 BU, which was higher than that of corn starch (589BU), oat starch (999BU) and wheat starch (298BU).

Sweet potato starch, like corn starch, will be sticky when dissolved in water and heated, while sweet potato powder has higher viscosity than corn starch. Therefore, sweet potato powder is used less when thickening Chinese dishes, because the viscosity is difficult to control. It is widely used in making Chinese dim sum, such as mountain dumplings.

Baidu encyclopedia-potato starch

Baidu encyclopedia-corn starch

Baidu encyclopedia-sweet potato starch