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My attempt at mushrooms in coffee grounds

Chris Kott

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Location: Marmora, Ontario

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posted 4 years ago

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As logs are just big wooden straws for trees to drink and take up water-soluble nutrients, wouldn't it work just to keep one end of an inoculated log sitting in water, or buried in a waterlogged spot? Shouldn't the moisture be drawn up the log by capillary action?

As to the rest of this thread, this is awesome. I have done the oyster mushrooms in a box thing, and had a "dead" box come to life in my under-sink composter (I fed it mostly coffee grounds), and I have had them take over my outdoor compost (enoki do this a lot for me, with oysters a close second), but I haven't turned my coffee habit into a mushroom operation.

Brilliant. Please keep us posted, and good luck.

-CK

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wayne fajkus

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Location: Central Texas zone 8a

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posted 4 years ago

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Thanks Chris. I made 2 mushroom tubes. These are being given away as I am creating local interest in them. Not a bad thing at all-Getting people to grow their own!

The 2 tubes used up the last of the spawn. I used hay as the substrate, which i boiled. My next one will use the used substrate from the original tote. That and spread some around outdoors on mulches. It may prove valuable on my "earthworks" project. Getting a wild naturalized harvest would trump these little kits.

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wayne fajkus

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Location: Central Texas zone 8a

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posted 4 years ago

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1 month later. They sent me pics and said one of the best gifts "ever". Reminder that this was hay, not coffee grounds.

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Jen Fulkerson

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Location: N. California

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posted 4 years ago

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Thank you for posting this. I have been wanting to grow mushrooms, but was worried about our hot dry climate. I think I could do this. Does it need to be a certain temperatures? Just wondering if I could start now, or wait until winter?

“We can complain because rose bushes have thorns, or rejoice because thorn bushes have roses.” — Abraham Lincoln

wayne fajkus

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Location: Central Texas zone 8a

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Now should be perfect. All of these are in Central Texas. I think one person had the pvc tube outside, the other kept it inside. Mine were inside.

The pvc tube was never watered until she saw white pinheads in the holes then she watered it with rainwater. The tube is pretty closed off so moisture stays put.

With my first ones in a bucket, they dried out pretty quick with nothing closing the top. I think that is the key.... Drill holes for the mushrooms, lid the top. When you harvest from the holes it is very clean. No dirt on the mushrooms.

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Jen Fulkerson

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posted 4 years ago

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Thanks. My in-laws are in the pump business, so there is always pic pipe available. We don't drink coffee, and don't have straw, but a large bale is only 10.00. I can always use straw for lots of other things. What is the least expensive way to get the spore? I have seen the kit at the garden center, but that is 20.00. I have heard you can use grocery bought mushrooms, I need to check that out. Any warnings I should know?

“We can complain because rose bushes have thorns, or rejoice because thorn bushes have roses.” — Abraham Lincoln

wayne fajkus

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Posts: 3073

Location: Central Texas zone 8a

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I can only reply to how i did mine. I ordered the coffee cultivator kit from mushroom mountain. Very easy to do.

https://mushroommountain.com/products/coffee-cultivator/

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Eric Bernier

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posted 4 years ago

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very interesting post.

I tried inoculating some coffee grounds after seeing a Youtube video.
I put the grounds in the oven at 250 for a few hours and let them cool down covered then transferred to opaque plastic containers with vents (covered with pieces of surgical mask) on them.
I re-hydrated the grounds a bit and It seems I am only growing mold...what am I doing wrong?
I am doing this in my kitchen but am sanitizing as much as I can. I have inoculated grain with success.

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