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OfflineRodRoddy
newbie

Registered: 07/02/01
Posts: 36
Last seen: 15 years, 20 days
Sterilization by Oven
    #352869 - 07/02/01 09:02 AM (16 years, 1 month ago)

OK, so everything I have ever read about mushroom cultivation has me sticking canning jars into a pot of boiling water for one hour. Of course, I don't have a pot that can hold 12 half pint jars. So, my question is, could I bake them in the oven? I figure if I were to buy a baking tray with a lid I could do all 12 of them at the same time. I also figured that an hour at 400 degrees Fahrenheit would be far more sterile than a pot of boiling water on the stove. Doing this may also allow me to forget about covering the jars with foil? Let me know what you seasoned professionals think.

Thanks,
RodRoddy



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Invisiblepuscle
genius of love
Registered: 01/07/01
Posts: 4,539
Loc: NY
Re: Sterilization by Oven [Re: RodRoddy]
    #352872 - 07/02/01 09:11 AM (16 years, 1 month ago)

You'll bake them dry.



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Offlineegghead
veteran
Registered: 04/25/01
Posts: 1,054
Loc: Milky Way
Last seen: 15 years, 4 months
Re: Sterilization by Oven [Re: RodRoddy]
    #352883 - 07/02/01 09:48 AM (16 years, 1 month ago)

Plastic lids won't survive temps that high. Also keep in mind that water turns to steam somewhere around 212 F, depending on elevation and atmospheric pressure. If it were to work, you'd need to super-hydrate and cook just long enough to get the right moisture content when they're cool. Similar to baking a loaf of bread. It might take some trials to get the technique down.


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Offlinewikedanjel
Cultivator
Female
Registered: 07/07/02
Posts: 169
Loc: in the mountains
Last seen: 6 years, 2 months
Re: Sterilization by Oven [Re: egghead]
    #732871 - 07/09/02 05:58 AM (15 years, 1 month ago)

What if you were to put the jars into a tray of water?

Dumb questions are my specialty


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Anonymous

Post deleted by users_request [Re: wikedanjel]
    #732885 - 07/09/02 06:18 AM (15 years, 1 month ago)



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Offlinewikedanjel
Cultivator
Female
Registered: 07/07/02
Posts: 169
Loc: in the mountains
Last seen: 6 years, 2 months
Re: Sterilization by Oven [Re: Anonymous]
    #732916 - 07/09/02 06:47 AM (15 years, 1 month ago)

OK slap me surprised, I mean really i dont see why anyone would need a plug in Pot. Its gonna save my life. Well i'm going to get myself to wal mart and buy all my supplies for my cakes. Now If I can't find the tamales pot, would it work it I put all the jars in a tray like pot half way up the jars with water IIN and oven? I figure this would heat up enough at 250-300 F for an hour to boil the water and sterilize properly just like if done in a pot. If not I'll have to keep searching for a portable stove. And finaly, what can happen if i Sterilize twice? So you see the whole problem for me is that I dont have a stove. If I did I wouldnt be asking so many questions.


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http://cannanetics.com


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Invisibledefiningsound
lurker
Registered: 05/14/02
Posts: 8
Re: Sterilization by Oven [Re: wikedanjel]
    #733123 - 07/09/02 09:10 AM (15 years, 1 month ago)

You have an oven, but no stove? I had no idea that was a possibility.

If you have a microwave oven, you can use the "fractional sterilization" method of sterilization (search the forum for this).

Alternatively, I have used a dry sterilization method:
1 measure the dry ingedients into a large container (i.e. apple juice can)
2 bake the mix and the planned growing containers at 300 deg for an hour
3 cover the mix with tin foil, and let it cool
4 scrape spores into the appropriate amount of sterile water
5 using the oven "flow-hood" tek, mix the spore water and sterile ingredients
6 distribute the innoculated substrate into containers

This method worked well for me when growing in low, flat containers. But it did not work well for me when growing in jars. Growth started in hundred of places, and outpaced any tek involving a syringe injection of spores.


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