|
Some of these posts are very old and might contain outdated information. You may wish to search for newer posts instead.
|
Wahlmeier
Newbie

Registered: 12/21/13
Posts: 73
Last seen: 7 years, 6 months
|
Dry oven sterilization
#19381336 - 01/07/14 08:38 AM (10 years, 24 days ago) |
|
|
I know that ovens don't work to sterilize moist substrate but what about dry substrate ? I mean could I bake sawdust and bran for an hour and when finished add sterile water to rehydrate then cool and grow . I have a PC for spawn but it seems too small for bulk substrates .
Any ideas ?
Thanks
Wally
|
slh980
Average Idiot



Registered: 10/07/12
Posts: 369
Last seen: 4 years, 10 months
|
Re: Dry oven sterilization [Re: Wahlmeier]
#19381369 - 01/07/14 08:53 AM (10 years, 24 days ago) |
|
|
If it's big enough for grain jars, it's big enough to pasteurize. Also, you don't want to sterilize your substrate, you want to pasteurize it.
Frank's Proper Pasteurization Tek 3.0
|
NOTFALL3N
Epic

Registered: 11/18/13
Posts: 371
Last seen: 3 years, 10 months
|
Re: Dry oven sterilization [Re: slh980]
#19381382 - 01/07/14 08:57 AM (10 years, 24 days ago) |
|
|
--------------------

|
Sgt. Pepper



Registered: 06/19/13
Posts: 2,538
Loc: Third Stone From The Sun
Last seen: 1 month, 23 days
|
Re: Dry oven sterilization [Re: NOTFALL3N]
#19381389 - 01/07/14 08:59 AM (10 years, 24 days ago) |
|
|
Actually I'm pretty sure you do sterilize sawdust when it contains bran. Something about pasteurizing not cutting it for supplemented substrates. Check out the edibles section, they might know more on the subject.
|
slh980
Average Idiot



Registered: 10/07/12
Posts: 369
Last seen: 4 years, 10 months
|
|
Quote:
Sgt. Pepper said: Actually I'm pretty sure you do sterilize sawdust when it contains bran. Something about pasteurizing not cutting it for supplemented substrates. Check out the edibles section, they might know more on the subject.
Yeahh didn't catch the bran part. In other words OP, load a bunch of jars in your pc just like you would with pf cakes and sterilize.
|
slartibartfast
Stranger



Registered: 05/13/08
Posts: 203
Last seen: 3 years, 11 months
|
|
supplemented saw dust will need to be pc'd, while clean sawdust probably has less nasties than grain there are still going to be nooks and crannies that harbor contams and one should not forget that dormant bacterial endospores (as they would be in dry substrates) are extremely tough to destroy (hence the 12-24 hour presoak often used with grain ). Steam is the best way to ensure that sterilization temps are reached throughout the substrate. I have had some luck with fast growing species using pasturised or sometimes just rehydrated sawdust from wood pellets as they are a pretty clean substrate but the addition of additional nutrients is going to greatly reduce your chances of success in my opinion. You could of course increase the nutritional content of your substrates by using larger than normal amounts of spawn and this will also reduce colonization times.
-------------------- Pressure cooking shit to kill shit so i can knock it up with my shit to grow shit. Trades welcome
|
|
|
You cannot start new topics / You cannot reply to topics HTML is disabled / BBCode is enabled
Moderator: Shroomism, george castanza, RogerRabbit, veggie, mushboy, fahtster, LogicaL Chaos, 13shrooms, Stipe-n Cap, Pastywhyte, bodhisatta, Tormato, Land Trout, A.k.a 1,274 topic views. 30 members, 207 guests and 10 web crawlers are browsing this forum.
[ Show Images Only | Sort by Score | Print Topic ] |
|