Home Mushroom Production

Gourmet mushrooms like Shiitake, Oyster & Portabello mushrooms are growing in popularity but the retail price for many of these delicacies can often be out of range for most people. Mushroom lovers on a budget have another option - growing mushrooms at home.

Mushroom production might seem complicated but there are many kits on the market that make growing mushrooms easy. These kits provide the substrate, pre-inoculated with mushroom mycelia and simple instructions.

Mushrooms

When we think of mushrooms, we often think of the soft caps & stems that we see in the grocery store. Hidden underground, however, is the vast majority of the mushroom mass itself- the network of feathery mycelia. These mycelia, often seen when turning over compost, are what the mushroom uses to absorb food & moisture. The cap & stem that we commonly eat is just the fruiting body.

To grow, mycelia require an uncontaminated food source, free from other microorganisms, moisture, and temperatures between 60-80F. The food source can vary, depending on the species of mushroom, from sawdust & shavings to manure or compost. Once mycelia have colonized a food source, they begin to produce fruiting bodies, commonly referred to as pins. As the pins mature, they develop into recognizable mushrooms.

Kits

Most commercially available kits range in price from $20-$30. The most common species available in kit form are regular button mushrooms and portabellos (Agaricus species), shiitake, and oyster. Most kits will start fruiting within a week and you can expect a harvest of 1-2 pounds of mushrooms per flush. Commonly, each kit will provide 2-3 flushes of mushrooms before the food supply is spent. Finished kits can then be placed on the compost pile where you can sometimes get a bonus flush of edibles.

Types of mushrooms

Shiitake mushrooms (Lentinula edodes), have a rich, meaty texture. The brown caps often grow up to 3-4 inches in diameter. They have been highly prized in the Orient for centuries and scientists are researching its medicinal, anti-viral properties. Indoors, the kits can be stored from 55 to 75F and will produce 2-3 pounds within 3 months.

Oyster mushrooms (Pleurotus spp) are named for the fact that their flavour & texture resembles oysters. The mushroom itself comes in different colours, depending on species, from pink, cream, white & gray. The white mushroom is the easiest to grow and will fruit over a wide temperature range from 55-75 F. These mushrooms are particularly sensitive to humidity and need to be misted 2-3 times per day.

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