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What Can I Do With An Old Mushroom Substrate?

There are many appropriate uses for spent mushroom substrate. Spent mushroom substrate is excellent to spread on top of newly seeded lawns. The material provides cover against birds eating the seeds and will hold the water in the soil while the seeds germinate.

Can mushroom substrate be reused?

It is also possible that substrate can be reused to grow more mushrooms. For example, if you have a bunch of spent shiitake blocks, you might be able to break them up, re-sterilize them and reuse the organic material to grow more shiitake!

What do you do with the mushroom substrate after harvesting?

After every harvest the substrate that has given their last mushrooms inside is taken out. Some growers throw it on a big pile and compost it, some leave it in their plastic bag or container and stack it up (that’s us).

How long does mushroom substrate last?

Store your 50/50 substrate in a cool and dry location. 50/50 substrate can keep for up to 4 months in these conditions. There will be no need to rehydrated or sterilize the products a second time. If you need to store the product longer it can be refrigerated for up to 6 months and frozen for up to 1 year.

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How do you sterilize a spent mushroom substrate?

One way to pasteurize the substrate is simply to submerge it in boiling water for at least one or two hours. For most operations, we have found that pasteurization is sufficient to grow mushrooms with minimal risk of contamination.

What do I do with my old mycelium?

RE-INOCULATE FRESH SUBSTRATE
Spent substrate as an inoculant for a fresh substrate gives the reused mycelium a nutrient boost. When preparing a new substrate, crumble and mix the old one in with it. Incubate and fruit again. The downside being, the flushes aren’t as exuberant as a first run with fresh spores.

How many times can you reuse substrate?

The high peat content in potting mixes means reusing soil is easy to do and will yield excellent results even after two or three growing cycles. Using soil more than three times is possible if you continue to nourish it and it is pest and disease-free.

Can mushroom substrate be composted?

Mushroom blocks are made from sawdust and grains and organic matter that make a great amendment to soil and compost.

What is spent mushroom compost good for?

Mushroom Compost has become popular in recent years with gardeners because it is so high in organic matter. It can be used as a soil conditioner and as a mulch, and is very good for growing vegetables in. Using mushroom compost will improve your soil’s structure and water retention and add nutrients.

Is mushroom soil good for gardens?

Mushroom soil has a variety of good uses in the garden: It makes a good soil amendment, adding organic material to the soil that improves the texture and water retention of the soil. It is a good addition to heavy soils.

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How long does mycelium take to decompose?

These quick-growing filaments are what makes mycelium an efficient packaging solution. It takes around seven days to grow our mycelium packaging – and, then, approximately 40 days for them to biodegrade.

How do I know if mycelium is contaminated?

If you spot green, blue, grey, or black patches on or in your fruiting box, your culture is most likely contaminated. Do keep in mind, however, that small blue stains in the mycelium may just be bruising and not mould. Especially where the rye presses the mycelium against the grow box, you may see some blue spots.

What triggers mushroom fruiting?

Creating Conditions for Fruiting

  1. High humidity. Most species like 80 to 95% humidity.
  2. Ideal temperature for fruiting — varies with species and strain. Oyster and shiitake have cold and warm weather strain.
  3. Good air exchange — ventilation or fan, low CO2 levels.
  4. Enough light. Indirect sunlight for most species.

Can I plant directly into mushroom compost?

“The soluble salts and other nutrients in fresh, undiluted mushroom compost are too concentrated for germinating seeds, young plants and other salt-sensitive plants including members of the heath family such as rhododendrons, blueberries and azaleas,” said Hart.

Does mushroom substrate need to be sterile?

You should fully sterilize the substrate. Always follow the sterilization method with no exceptions. Check the pressure regularly when using a pressure cooker to achieve a heat sterilization.

How do you sterilize a substrate without a pressure cooker?

Place your substrate above a steaming pot of water for 3-4 hours. Like this, you can get pretty close to sterilization. Temperatures will only reach about 212F compared to 250F in a pressure cooker. Place your substrate in the oven at 350 for 3-4 hours.

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What do you do with a substrate?

The abundance of spent substrate and the lack of waste management supervision has led the world in the search of new alternative ways of recycling and reusing.

  1. Bioremediation.
  2. Crop Production.
  3. Biogas for heating or cooking.
  4. Plant hormone.
  5. Food for animals.

What can I do with extra mushroom spores?

Lastly, but certainly not least, you can simply add your extra spawn to your compost pile. Chances are good you will get some mushrooms fruiting from that, but it will also add an extra boost to your compost and make it better than ever when the time comes to spreading that out in your garden.

What happens if you bury a mushroom?

Burying the mushroom block helps protect it from the elements, and the fungi can wick moisture from the nearby soil.

Will mycelium grow forever?

Longevity. In principle, a mycelium that can spread through the ground could keep on growing indefinitely and large, old mycelia are known.

How many harvests can you get from a mushroom kit?

2-3 harvests
How long do mushroom growing kits last? Each grow kit usually lasts for about 2-3 harvests, but this will vary depending on the variety of grow kit you choose. Kits may produce more or less mushrooms in total before they expire and must be replaced.

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