Vinegar is also known as "bitter wine". The process of brewing vinegar is the process of further oxidation of alcohol to acetic acid. It has been more than 2800 years since the spring and Autumn period. The earliest vinegar is people.
This is the earliest wine in China and the earliest vinegar in the world.
The original great music, the selection of pure sorghum, the traditional solid state brewing technology, low temperature alcohol fermentation, high temperature vinegar, fire fumigation, color and color, color and lustre, flavor, thick and thick, sour and thick, long aftertaste.