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Offlineherby
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Registered: 07/25/04
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incubation temperature question
    #2958582 - 08/03/04 01:46 AM (12 years, 7 months ago)

During the incubation period i read in the PF Tek Method that the incubation temp should constantly be around 70
degrees, but later today someone told me that it should be around 82-84 degrees. Which one should it be!!?? I dunno thats y i'm asking.
What should the proper temperature be if I won't be around to watch over it (I'm going to Banff while the germination and colonization
should occurr)? Could someone please tell me?


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InvisiblePrisoner#1M
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Re: incubation temperature question [Re: herby]
    #2958650 - 08/03/04 02:14 AM (12 years, 7 months ago)

the incubation temps should be in the low 80's, frioting temps are around 70

if the incubation temps are low it simply means it will take a little longer to colonize


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OfflineNNY
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Re: incubation temperature question [Re: Prisoner#1]
    #2958683 - 08/03/04 02:37 AM (12 years, 7 months ago)

ive always been told and read between 80-85 degrees is optimal (ive even read here as specific as 84-86 for cub, 80-85 for others).  i usually set my tub-tub thermometer at about 80 and right now in the summer the incubator stays between 83 at night and 85 durring the day.  which is great (and cost me a whole 30$ to build, an excellent investment).  it also makes cold shocking your cakes easier when you go to take them out of the jars -- the 5-10 degree drop from an incubated temperature to a normal room temperature combined with the light and oxygen will help you with pinning.

i think the spores/mycelium can start to die from heat death in the mid 90's but i did see one grow log that survived 100+ -- but honestly there is no reason it should be getting that high.  if you live in an area where it can get entirely too hot durring the day i would hope you'd have an air conditioner :smile:

though its true, like prisoner said, colonizing in the lower 80's and upper 70's is fine, all it will do is take a bit longer to colonize.  when you're doing something small and contained like jars its not a big deal how fast, as an extra week probably wont raise your chances of contams much if at all.


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InvisiblePrisoner#1M
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Re: incubation temperature question [Re: NNY]
    #2958710 - 08/03/04 02:46 AM (12 years, 7 months ago)

Quote:

NNY said:
i think the spores/mycelium can start to die from heat death in the mid 90's but i did see one grow log that survived 100+ --




I have seen mycelium survive in the high 90s, I believe that 106 is the accepted temp of death for mycellium, spores are much more durable, I had some that were given to a friend that spent 2 summers in temps above 105F and a low of 8F


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Offlinehyphae
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Re: incubation temperature question [Re: herby]
    #2959664 - 08/03/04 11:35 AM (12 years, 7 months ago)

82-84 for incubation anything out of this range will be slower. Also something to keep in mind actual substrate temps will be 2 degrees higher than ambient air temps also thermo death limits are reached at 103 degrees. As far as fruiting 70 degrees will really slow down fruit production! 74-77 is optimum for fruiting :wink: that little 4-7 degree increase makes a big difference btw IME.  GL herby


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