1. Put the pine bark into a clean plastic bag, add some fat water in it, use tools to tie the bag mouth tightly, don't let it touch the air, place it in a place with sufficient light, and wait about a month to use.
2. The second method of fermentation requires crushing the pine bark, adding some chicken manure, urea and lime, adding a proper amount of fermentation AIDS after it is wet, stirring evenly with tools, and covering with a cover. Wait about 12 hours to mix again. During this period, we should pay attention to moisturizing and heat preservation. The temperature during fermentation should be controlled at 40-45 ℃, and it should be turned every half month or so. Wait about 2-3 months for fermentation.
1. Color: the color is usually brown before fermentation. However, after fermentation, the color will become darker, it will become burnt black
2. Taste: it can also be judged by smelling its taste. Its own taste has some fragrance. However, in the fermentation we will add urea, accompanied by high temperature fermentation, the taste will become very unpleasant.
