Phase I outdoor composting yards with concrete bunkers

WOCODO's Button Mushrooms Composting Systems provide a complete, professional-grade solution for producing high-quality mushroom substrate. Our systems cover the entire composting process from raw material preparation through Phase I, Phase II pasteurization, and Phase III spawn-run conditioning.

Phase I — Outdoor Composting

Raw materials including wheat straw, horse manure, gypsum, and poultry litter are mixed and stacked in concrete bunkers. Automated turning machines ensure uniform decomposition over 6–12 days, with controlled watering to maintain optimal moisture levels.