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Premier Mushroom

Premier Mushrooms Inc. is located in Northern California and is one of Colusa County’s fastest growing ag-related industries. In seven short years, their farm has expanded from 16 to 64 growing rooms and grown production from 70k lbs/week to 300k lbs/week.

Premier Mushrooms composts, grows, processes and distributes their product all in one location. This vertically integrated system allows for greater consistency and quality control. Along with producing fresh, great tasting mushrooms, Premier has been actively involved in the local community and has been making efforts to reduce the environmental impacts of operations.

The composting and pasteurization processes take place in a fully enclosed wharf area. The covered wharf provides several benefits which can be seen in the final product. There are currently 64 growing rooms (40 white rooms & 24 brown rooms) operating at maximum capacity. Advanced technology allows the grow-room climate to be monitored 24/7 and ensures product quality and safety. After being picked, mushrooms are taken to the 21,000 square foot cold storage facility where they are processed and typically ship out the same day.

Premier Mushrooms is one of the first Mushroom Farms in the country with advanced growing technologies. Each of the 64 grow-rooms is equipped with advanced climate-controlled technology which auto-regulates temperature, humidity and C02. After each grow-cycle, steam is utilized to sterilize the rooms in order to ensure maximum quality and safety while minimizing the use of chemicals. Grow beds are also made of aluminum in place of wood in order to inhibit bacterial growth. A streamlined design results in simplified picking, loading and unloading. Barcodes on every flat enhance traceability and each box of mushrooms can be traced to the picker, room, and vendor. As a result, Premier Mushrooms continues to produce some of the highest and most consistent yields in the industry.

Their 21,000 square foot mushroom processing facility is designed for strict adherence to food safety guidelines. These measures are driven by the USDA, Department of Defense and customer specifications. However, Premier Mushrooms takes a proactive approach and strives to exceed those standards already in place. In addition, the cold storage facility also includes bio-terrorism security measures.