Identification of assured steamed bread can be accomplished by "touching, seeing, smelling, tasting and comparing".
Feel it, feel it on the steamed bread, it feels fluffy and tender, and the skin is smooth and does not touch your hands.
Look, steamed bread is light yellow or milky yellow. Used steamed bread will turn blue and white with whitening agent or improver.
Smell, steamed bread has a natural pure fragrance, pure wheat flavor, slightly alkaline taste. Steamed bread made of improved flour has no fragrance or peculiar smell.
Have a taste, steamed bread in your mouth, it feels not hard, not sticky, and tastes good.
In contrast, two different steamed buns are placed on a piece of white paper. In natural light, light yellow steamed bread is good steamed bread, while blue and white steamed bread is made of improver or whitening agent.
Some unscrupulous vendors aim at washing powder as the starting point. Washing powder contains alkali and foaming agent. So when mixed into flour, steamed bread and fried dough sticks are especially big and white. However, eating food mixed with washing powder is very harmful to human health. Now we provide you with identification methods:
1. Appearance: The surfaces of white steamed bread and fried dough sticks mixed with washing powder are particularly smooth. When facing the light, you can see floating and flashing small particles, which are fluorescent substances in washing powder.
2. In terms of texture, the steamed bread made of yeast, soda ash and alum is soft in texture, spongy in section, and fine and uniform in pores after crushing; Moreover, steamed bread mixed with washing powder often has big holes.
3. Smell and taste: Normally fermented steamed bread or fried dough sticks have an inherent fermented or fried taste, while abnormally fermented steamed bread or fried dough sticks have a dull taste.
4, soaking water: steamed bread mixed with washing powder is easier to loosen.
I hope it helps you.