1, choose flour to see the color:
Buckwheat itself is brown, and good buckwheat noodles are slightly yellow-gray. Buckwheat flour is flour made from common buckwheat by shelling and grinding. The color of buckwheat flour is relatively light, mostly light yellow or dark white.
There is a trace of carotene in wheat, so the flour should be milky white or some yellow; After adding whitening agent, oxidation reaction will occur and flour will turn white or pale.
2. Choose flour to smell:
Flour without whitening agent should have light wheat flavor and fragrance, while flour with whitening agent will have bland taste or a little chemical taste. At the same time, because flour is powdery, it has a strong ability to absorb fragrance and moisture. If you dry it after getting wet, it will smell a little musty and smell a little wheat.
3. Select flour and knead it by hand:
When twisting flour by hand, high-quality flour feels a little astringent, but flour mixed with talcum powder, lime powder and other substances feels slippery.
Extended data:
Efficacy of buckwheat noodles:
1. Some flavonoids in buckwheat also have antibacterial, anti-inflammatory, antitussive, antiasthmatic and expectorant effects. Therefore, buckwheat is also called "anti-inflammatory food", and these ingredients also have the effect of lowering blood sugar;
2. Buckwheat contains nicotinic acid, which can promote metabolism, enhance detoxification ability, expand small blood vessels and lower blood cholesterol;
3. Buckwheat protein is rich in lysine, trace elements such as iron, manganese and zinc are richer than ordinary grains, and it is also rich in dietary fiber, which is 10 times that of ordinary polished rice, so buckwheat has good nutritional and health care functions;
4. Buckwheat is rich in vitamin E and soluble dietary fiber, and also contains nicotinic acid and rutin. Rutin has the effects of reducing blood fat, cholesterol, softening blood vessels, protecting eyesight and preventing cerebrovascular hemorrhage.
Baidu encyclopedia-buckwheat noodles