How to reduce the cost of vinegar production or increase the yield?

It is recommended to use Anqi brewing quench instead of bran quench. Last year, Angie's company conducted an experiment in our factory, with Angie's brewing quartz during the production of wine, out of wine 8% (v/v) out of the acid 43g/L, and the use of only 0.5% of the appearance of the cost of a single fermentation with the cost of the quartz from more than 250 yuan to less than 100 yuan, you can consider to try.