What's the difference between ordinary juice and fermented juice? What is the difference?

Fruit juice beverage refers to a clear juice or turbid juice product made by adding water, sugar and sour agent. Turn into juice or concentrated juice. The fruit juice content in the finished product is not less than 50g/L, such as orange juice beverage, pineapple beverage, apple beverage, etc. Juice drinks containing two or more different kinds of juices are called mixed juice drinks.

Fermented fruit juice beverage refers to the product made by adding water, salt and sugar solution. To fruit juice made from fruit or juice after lactic acid fermentation.