2b. Growing Oyster Mushrooms at home

vue - 2b. Growing Oyster Mushrooms at home - Wheat straw

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This shows the preparation of Wheat Straw (and coffee grounds) for transferring oyster mycelium into, which I made in my earlier days of growing mushrooms. Heating to boiling (or above 180 F) actually makes the media more susceptible to contamination, which I learned after doing this and many other grows. - Follow the link to the newer video on growing oyster mushrooms at home to see the culmination of dozens of experiments in growing oyster mushrooms. It consistantly produces well and is a simple, straight forward method.

Commentaires

you are going to cut the straw with such a small tool? :p

Hi, I have a question. I use straw and i pasteurize it in 80 degree Celsius tap water. I don't know why but my straw gets green after a couple of days... Why is that? What can i do to change it?

hiiiiiiiiiii plssssssssss do help me............... today I did mushroom cultivation at college and as a source of food for the oysters, I happened to sprinkle SUCROSE crystals for every layers....... the substrate I used was wheat straws............. pls somebody help me out plzzzzzzzzzzzzzzzzzzzzzzzzzzz............. m tensed thinking about the resulting fruiting bodies............

hi can you tell me after you put the mycelium in the coffee grounds, will the mushroom grow out from the coffee grounds? thanks

I WANNA SEE RESULTS !

Since the batches these videos were based on developed contamination and had to be destroyed, and I have not had the time recently to create new versions, there isn't any more in this series.

Where is video 2c? Or 2d?

What is the source of your info about increasing the risk of contams if you boil? I have had recommended to me the use of H2O2 which I intend to do some tests with soon, as soon as my work load lightens. I'll post the results.

Formalin is a mixture of formaldehyde, methyl alcohol and water. Formalin can cause cancer . When inhaled formaldehyde can cause irritation to the nose and throat, respiratory distress, respiratory system damage, pneumonia or pulmonary edema (swelling of the lungs). When exposed skin it causes the skin to become red, hardened, with numbness and a burning sensation.. It is toxic chemical that I would personally never use, especially in food production. Use hydrogen peroxide instead.

Dude, actually i use FORMALIN for sterillisation. Is it recomended? And sorry for spelling mistakes...:-P

The contamination came from using coffee grounds and exposing the media, after pasteurizing it, to open air. Green forest mold spores are virtually everywhere in this region.

you could have pressure cooked it.instead of sterilizing in hot water.

Okay, good point. Thank you.

Oyster mushrooms prefer difficult to decompose things like wood and corncob. Nitrogen rich alfalfa will attract other, contaminating species of fungi. I encourage you to try it, just be sure to introduce a large percentage of mycelium to the media so the oyster can out run any competition and be sure to thoroughly pasteurize the media and use as sterile a procedure as you can.

We have alfalfa straw in this area, not wheat straw. How do you feel about that as a medium?

That makes good sense. Thanks for that rule of thumb.

For contamition problem: You dont seem to use enough spawn/seed mycelium for inoculation, we want to overrun everything so more the better. Ammounts of spawn you use is related to how clean and sterile you have been, if you have ZERO contams (there will always be some if you dont have laminar flowhood) you could insert 1g of mycelium to unlimited ammount of substrate. But because we do pasteurize, we need good 1/4 of spawn and 3/4 of substrate mixed throughoutly for fast colonization.

This run became badly contaminated with green forest mold, and I did not shoot any video of it when I was disposing of it. I am planning to redo the videos this winter, once my work, which is seasonal, slows down enough to permit it.

Do you have the part 2 of this?

Actually I appreciate the feedback. I have been continually trying to improve the quality of my videos and will take this into account in future videos.