About Us…

Maine Cap N Stem Started in 2014 cultivating a variety of gourmet mushrooms from spore to store below the streets of Portland Maine. Within a year our fresh mushroom production expanded from less than 200 sq ft to a 3000 sq ft facility in Westbrook Maine.

Between 2015 and 2016 the decentralized micro mushroom industry began exploding all across the country and at the time it was integral for each of these small farms to develop their own cultures, spawn and fruiting substrate to grow fresh mushrooms and supply a self built distribution system for sales to farmers markets, restaurants and wholesalers. In 2016 Maine Cap N Stem decided to drop out of the fresh mushroom market all together and work directly with these farms all across the country to supply their growing mushroom demand with Ready To Fruit substrate.

This transition set a business pivot into motion as we became to first national producer and distributor of Certified Organic Mushroom Substrate for small and large farms across the continental USA. In 2016 we moved to our current 20,000+ sq ft facility in Gardiner Maine and began producing and supplying farms from Portland Maine to Portland Oregon with an easier scalable option to grow by skipping the intensive lab work to produce their own spawn and substrate and simply focus on fruiting and selling fresh mushrooms. Within the last 5 years we have proven the model to work and continue to support the growth and development of fresh mushroom farms around the states.

From 2019 to 2020 Maine Cap N Stem developed a state of the art spawn production facility and expanded our offerings from simply substrate to spawn and culture products as well as “combination substrate pellets” for farms to forward integrate and scale up into their own substrate production for a balance of options and supply chain diversification allowing a higher level of control for each farms independent focus.

With each year that passes as we continue to grow, innovate and develop, our goal remains the same: Help independent farms sustainably grow to supply the massive demand for fresh mushrooms across all market platforms!