Growing and expanding spawn (2024)

Growing and expanding spawn (2)So you've clonedyour mushroom ---now what? Paul Stamet's GrowingGourmet and Medicinal Mushroomscomes at this from a commercial point of view, so he recommends workingin anultra-sterile laboratory and growing cloned mushrooms on agar inpetri dishes. Once the mycelium has nearly colonized the entirepetri dish, he cuts the agar into sections and uses it to inoculatejars of grain.

Although Stamets' labtechnique isn't really applicable on our farm, Istill teased out a lot of information that will probably be equallytrue for our cardboardmushroom cultivation.The purpose of this stage in the procedure --- known as the spawn run--- is to take a little bit of fungal growth and turn it into a lot ofgrowth. Stamets repeatedly urges you to keep the spawn running atall times by providing the perfect growing conditions --- moderatehumidity of around 60 to 75%, a warm temperaturearound 75 degrees Fahrenheit, and darkness to moderate light.

If you play your cardsright, the mycelium will run very quickly at this point and it mustalways have more room to grow into. Never let the spawn cover allof its petridish/ cardboard/ whatever or it will use up its food, build up wastestotoxic levels, and lose vitality. Once the mycelium comes near theedge of its container, expand it by mixing the spawn into five to tentimes as much fresh substrate. Feel free to expand your spawntwice (which means it can become 100 times bigger than it was to startwith!), but use caution when expanding beyond that or your mycelium mayshow loss of vigor.

Make your own homemade chickenwaterer for as little as $1 per bird.

This post is part of our Growing Gourmet Mushrooms lunchtime series.Read all of the entries:
  • GrowingGourmet and Medicinal Mushrooms
  • KingStropharia mushrooms in permaculture
  • Tipsfor cloning mushrooms
  • Growingand expanding spawn
  • Cangrowing mushrooms be as easy as a worm bin?
  • Growingmushrooms indoors and outdoors
  • Substratesfor mushroom cultivation
  • Sterilizingand pasteurizing mushroom substrates
  • Inoculationpaths for mushroom cultivation
  • Howto initiate mushroom fruiting

Growing and expanding spawn (3)

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About us:Anna Hess and Mark Hamilton spent over a decade living self-sufficiently in the mountains of Virginia before moving north to start over from scratch in the foothills of Ohio. They've experimented with permaculture, no-till gardening, trailersteading, home-based microbusinesses and much more, writing about their adventures in both blogs and books.

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comment 2

We keep our mushrooms under the shade of our trees --- we've got plenty of trees, and filtered light is actually good for them.

That said, we'd love to get shipping containers as easy house bases. Unfortunately, it's not really realistic to get them back to our living area --- it's a half mile walk across a creek and through lots of mud. It took a bulldozer to get our trailer back here. But maybe that would be a good cheap storage unit where we park our cars (and where stuff tends to accumulate until we get around to carrying it home.) Great idea!

Comment byannaThu Jan 14 17:41:40 2010

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Growing and expanding spawn (4)

comment 3

Trying to get back to Mark/Anna summary about challenging trips into non-ordinary reality resulting from exoproducts profucedcontaminating species

Comment byffej700Wed Sep 25 16:14:56 2019

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comment 5

Cultivating fungus is far easier than accessing data here:Looking for page about exogenous products produced by contaminants that are responsible for challenging altered states.

Comment byffej700Wed Sep 25 16:20:50 2019

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Growing and expanding spawn (2024)

FAQs

Growing and expanding spawn? ›

Never let the spawn cover all of its petri dish/ cardboard/ whatever or it will use up its food, build up wastes to toxic levels, and lose vitality. Once the mycelium comes near the edge of its container, expand it by mixing the spawn into five to ten times as much fresh substrate.

What does spawn mean in cultivation? ›

Spawn is the carrier that holds a specific strain of mushroom mycelium in stasis until you, the cultivator, are ready to transfer it into another substrate such as a wood log, straw, compost etc.

How to make mycelium grow quicker? ›

Humidity: High humidity levels (around 95-100%) are ideal for mycelium growth. 3. Air Exchange: Regular air exchange is necessary to provide fresh oxygen and remove carbon dioxide.

What is the difference between mycelium and spawn? ›

Mushroom spawn is a substrate that already has mycelium growing on it. Mycelium, or actively growing mushroom culture, is placed on growth substrate to seed or introduce mushrooms to grow on a substrate. This is also known as inoculation, spawning or adding spawn.

Can you multiply grain spawn? ›

Grain Spawn is meant for folks with a little more advanced cultivation skills. Grain is a wonderful substrate because you can expand it 10 times, then expand each 2nd generation spawn jar 10 times - one jar can then make 100 jars of spawn!

What are the two types of spawning? ›

Open substrate spawners scatter their eggs in the environment. They usually spawn in shoals without complex courtship rituals, and males outnumber females. Broadcast spawners: release their gametes (sperm and eggs) into open water for external fertilisation. There is no subsequent parental care.

Is spawning the same as breeding? ›

Spawning is breeding and conception outside the animal body, most commonly found in species living in aquatic environments. Spawning then happens with the female laying her eggs in the waters, while a male covers these with sperm, most often at the same time and close to the eggs.

What stimulates mycelium growth? ›

Think about this: Mycelium is stimulated to grow by sound waves. That means, when we play music and gather together, nature is listening through mycelium.

How long does it take for mycelium to fully colonize? ›

Once inoculated, the mycelium takes upwards of 10 days to jump off the spawn into the substrate. At the same time, the wood is losing any ability to wall off an infection. There is no harm in inoculating stumps, logs, or wood chips immediately after harvesting.

What slows down mycelium growth? ›

Temperature Fluctuations:

Each mushroom strain has an ideal temperature range for growth. If the ambient temperature veers too far from this sweet spot, colonization can slow down or even halt.

What does mycelium look like when it starts growing? ›

In home cultivation, it's the white-ish growth we see on substrate blocks, plates, and jars. Mycelium can appear transparent or opaque, bumpy, fluffy, crystalline, webby, hairy, wispy, filamentous or clumpy and will often excrete an odorless, yellow liquid called exudate.

What is the mother spawn of mycelium? ›

The mother spawn: The starter spawn (or mother spawn) is made from a fresh and healthy mushroom or can be bought from a "spawn" producer. The "spawn" is the mycelium of the mushroom grown in a sterile medium that is used for propagation. The mother crop is like "a seed" which allows to start several mushroom cultures.

How much coffee do you put in grain spawn? ›

For ten jars, I like to use about a tablespoon of gypsum and a cup of coffee. Let the grains soak for 12 -24 hours. This will allow the grains to absorb water, and will cause many contaminants to sprout, making them more susceptible to being killed through sterilization.

Should I refrigerate grain spawn? ›

For longer storage, refrigerate the spawn for up to 3 months. If you use a partial bag of spawn, store the remaining spawn in its original bag, folding the top down from the filter patch and clipping to secure. Pink Oyster grain spawn CANNOT be refrigerated and should be used within two weeks of receiving.

What is spawn in agriculture? ›

In the spawn-production process, mycelium from a mushroom culture is placed onto steam-sterilized grain, and in time the mycelium completely grows through the grain. This grain/mycelium mixture is called spawn, and spawn is used to "seed" mushroom compost.

What does spawn mean definition? ›

1. : the eggs of aquatic animals (such as fishes or oysters) that lay many small eggs. 2. : product, offspring. also : offspring in great numbers.

What happens during spawning? ›

Broadcast spawning is a type of spawning where fish release eggs and sperm into the water. This method is common among fish that live in open water habitats, such as the ocean. The eggs and sperm mix in the water, and fertilization occurs externally.

Does spawn mean offspring? ›

Technically, the mass of small eggs laid by animals like fish, frogs, mollusks is called spawn. But the word has been borrowed to mean offspring, or the act of making them in general.

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