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brettobean25
Mush Grow Noob


Registered: 06/26/11
Posts: 185
Last seen: 13 years, 3 months
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MUSHROOM TEMPERATURE DEATH
#14730147 - 07/07/11 08:16 AM (13 years, 6 months ago) |
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I have limited access to a computer and i can't find anything(at least not in the time i have in the morning to use the computer)that says at what cold temperatures mushrooms(cubensis) die at. I am having a lot of trouble keeping consistent temps. in my unfinished house. It can go from about 52F. to 98 or 100f. i have found a spot that stays at about 74(for now) but is what I want to know is at what temps(cold temps)do cubensis die. I know they reach thermal death at 106F. And what is the optimal growing temp. for the mycelium of cubensis? Also the jars were in the room that was about 90 for 5 hours or so but it had only been about 20 hours after inoculation, does anyone think they are ruined? P.S. Sorry about all the questions but like I said I only have limited access to a computer right now, about 30 mins in the morning, and searching online won't yield the answers fast enough so I just ask them here one morning and see if they are answered the next, so thank you so so much in advance for any help.
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RogerRabbit
Bans for Pleasure



Registered: 03/26/03
Posts: 42,214
Loc: Seattle
Last seen: 1 year, 10 months
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Getting up to 90 prior to spores germinating didn't hurt anything. Best colonization speed is in the 75F to 80F range.
Thermal death is actually above 106F, but time at that temperature is equally important. For example, I often pour 140F agar over contaminated cultures, setting back the mold but the mushroom mycelium survives. In that case, the mycelium must survive very hot temperatures for several minutes.
As for cold, I've had them below freezing for short times, and have left jars to fully colonize in 40F temperature, which takes about 2 months. RR
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tracingBigTime
Mad Mycologist



Registered: 08/21/10
Posts: 143
Last seen: 2 years, 7 months
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colonization @ ~82 deg fruit @ ~75 deg
those are optimal. Depending on strain.
I think you'll be OK, although the myc will spread slower.
-------------------- <<<<<<<----TRACING---->>>>>>>>
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brettobean25
Mush Grow Noob


Registered: 06/26/11
Posts: 185
Last seen: 13 years, 3 months
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oh good. I was going to be worrying about that all day at work. Thank you so much for your help.
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