Why Does the Fermentation Bed Achieve the Required Moisture (65%) Without Adding Water? When setting up a fermentation bed, maintaining a moisture level of 65% is essential. But why is it possible to achieve this without manually adding water? Let's take the Jinbao fermentation bed as an example. The sawdust layer is typically only 50 cm thick, and the moisture content is set at 65%. This is a standard requirement for the Jinbao system, and once the bacteria are properly spread, no additional water is needed. So where does the moisture come from? The moisture in the Jinbao fermentation bed comes from several natural sources: (1) The sawdust itself: Fresh sawdust, such as that from Chinese fir, camphor wood, or other types of wood, usually contains around 60% moisture. However, if the sawdust is old and dry, its moisture content can drop to as low as 30%. This variation must be considered when preparing the bed. (2) Pig excrement and urine: A significant portion of the moisture in the fermentation bed comes from the pigs themselves. While feces contain about 60% water, it’s the urine that contributes the most. For example, a single pig produces around 4 kg of waste daily. In a 20-square-meter fermentation bed housing 15–20 pigs, the total urine volume can reach approximately 60 kg per day. This provides a substantial amount of moisture, eliminating the need for manual watering. (3) Other sources: Small amounts of moisture may also come from drinking water residues, feed leftovers, or rainwater. However, these should be carefully managed to avoid over-saturation. It’s important to prevent rainwater from seeping into the bed, as excessive moisture can disrupt the fermentation process. If the moisture level is too low, the beneficial microorganisms may become dormant or work very slowly. But when the moisture is just right, they function optimally—helping to reduce odors, improve environmental quality, and ultimately increase economic efficiency. That’s why the Jinbao fermentation bed is designed to rely on natural moisture sources rather than manual watering, making it both efficient and sustainable. Tooth Model,Dental Diseases Model,Tooth Pattern Model,Lower Jaw Model Yinchuan Erxin Technology Co., LTD , https://www.exmedmodel.com