2. Control the oil return speed and adjust the shell hardness.
3, it is to increase the alkalinity of the moon cake skin, which is conducive to the coloring of moon cakes. The higher the alkalinity, the easier it is to color the mooncake skin.
4. It is the neutralization reaction between scooping water and acid that produces a certain amount of carbon dioxide gas, which promotes the moderate expansion of moon cakes and makes the crust of moon cakes more loose and not deformed.
Hook water, also called alkaline water, or edible hook water, is prepared by boiling plant ash with water for one day, and taking supernatant to obtain alkaline solution with PH value of 12.6. The main components of plant ash are potassium carbonate and sodium carbonate. In the absence of modern chemical alkali in history, the plant alkali prepared by this indigenous method has to be used.
Extended data:
Substitute for scooping water
Alkali solution for food instead of scooping water;
Edible alkaline flour is NA2CO3, also known as soda and soda ash, and its scientific name is sodium carbonate, which is used to neutralize excess acidity when making flour with traditional flour fat. After checking all kinds of data, it is found that the ph value of saturated solution of sodium carbonate is about 12 at room temperature, while the solubility of sodium carbonate is 39.7g/ 100g of water at 30℃ in summer, and the approximate ratio is about 1:3.
If the amount is large, add 500ml of boiling water to 250g of edible alkali block and stir until it is completely dissolved and the concentration is moderate. After adjustment, it can be stored in a glass bottle.
Instead of scooping water-sodium bicarbonate solution;
Baking soda is sodium bicarbonate, also known as acidic sodium carbonate, which is an acid salt with the chemical formula of NaHCO3. It can usually be used to make bread and soda. The ph value of saturated sodium bicarbonate solution is about 10 at room temperature.
Put baking soda powder in the oven, adjust the temperature to 450 degrees Fahrenheit (232 degrees Celsius) and bake for 30 minutes to make edible alkaline noodles.
Baidu encyclopedia-Guishui