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Offlinelaguendo
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Optimal substrate ph? (Hydrated lime in pc water)
    #1571656 - 05/23/03 09:28 AM (13 years, 6 months ago)

Posted this in standard cult two days ago but figured it might be applicable here as well...

I have been using popcorn with LGM innoculation in pc'd ovenbags very successfully
so far and today I thought of an idea. As I've understood it, psilocybe mycelium
prefers a slightly alkaline environment while trichoderma and the like prefers a more
acidic one. I do not know the average ph value of popcorn but I assume it's around 7
(correct me please?). Anyway my thought is as follows...

I prepare my popcorn by 1h pc - 1/2h strain - 1h pc in ovenbag.
What if hydrated lime was added to the initial pc'ing water? Then a slightly alkaline
water would hydrate the popcorn kernels which would create an even more suitable
environment for the mycelium and less than optimal for contams.

I couldn't find anything about this through the search engine but if it's an old idea
then my apologies...


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Invisibleshroomophile
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Re: Optimal substrate ph? (Hydrated lime in pc water) [Re: laguendo]
    #1580947 - 05/27/03 11:00 AM (13 years, 6 months ago)

I use limewater to pasturize my straw logs.Never tried it in my grain,but it should work for grain to grain transfer.Here's an idea.Make up a liter of limewater at Ph of 8,one of 9 and one of 10.Then use that water to hydrate your grain. Use the cultures from one grain master to seed your different jars.


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Offlinelaguendo
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Re: Optimal substrate ph? (Hydrated lime in pc water) [Re: shroomophile]
    #1582157 - 05/27/03 06:56 PM (13 years, 6 months ago)

Have you noticed any difference in colonization speed between using nonlime and lime
water for pasteurizing your straw? Or anyone else for that matter?

When I get hold of some litmus paper and my Creeper LGM has germinated I will try this out...

I wonder what colonization speeds could be attained.  Creeper from LGM in ph adjusted
popcorn substrate. I bet that could colonize weally fast...  :smile: 


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OfflineRogerRabbitM
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Re: Optimal substrate ph? (Hydrated lime in pc water) [Re: laguendo]
    #1599141 - 06/01/03 08:42 PM (13 years, 6 months ago)

Don't mix lime with your grain. Lime, bleach, etc will never compensate for sloppy sterile procedure. Your jars should be pc'd then innoc'd in a sterile environment. The value of lime is for casings, compost, or straw. When i pasteurize straw, I set the 160F water to a ph of 11-13. This seems to hold the contams at bay while the mycelium colonizes the substrate. The high ph does indeed slow down the mycelium a bit, but it kicks the trich in the butt. Another good trick is to sprinkle a bit of lime right on the surface of your casing layer. This creates a high ph zone right on the top where the trich and other contaminant spores land. Hope this helps.


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Invisibleshroomophile
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Re: Optimal substrate ph? (Hydrated lime in pc water) [Re: laguendo]
    #1601046 - 06/02/03 12:05 PM (13 years, 6 months ago)

The lime water is much faster.So much so i won't pasturize without it.


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Offlinelaguendo
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Re: Optimal substrate ph? (Hydrated lime in pc water) [Re: RogerRabbit]
    #1606610 - 06/04/03 01:18 AM (13 years, 6 months ago)

My thought was not to replace sterile procedures with lime but rather to provide a more -suitable- AND sterile environment for mycelium to grow in. Optimal ph for cubensis mycelium is slightly alkaline and the ph of popcorn, as I figure, is at 7. Meaning that the grain would colonize faster (?) than at the normal ph, assuming of course that I don't overshoot and land my popcorn ph at alot more than optimal for cubensis mycelium.


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Offlinecreekfarmer
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Re: Optimal substrate ph? (Hydrated lime in pc water) [Re: laguendo]
    #1711611 - 07/13/03 04:12 PM (13 years, 4 months ago)

It's important to realize that hydrated lime has alot of magnesium in it. It's been shown that magnesium inhibits growth of mycelium. Lime flour might be a better way to go.


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InvisibleDiploidM
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Re: Optimal substrate ph? (Hydrated lime in pc water) [Re: creekfarmer]
    #1713717 - 07/14/03 10:41 AM (13 years, 4 months ago)

Quote:


It's important to realize that hydrated lime has alot of magnesium in it. It's been shown that magnesium inhibits growth of mycelium.





Dolomitic lime has a lot of magnesium; most hydrated lime doesn't, though it's very alkaline and requires careful handling.

-Diploid


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4) We need a smaller, less-intrusive government.


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Mushrooms, Mycology and Psychedelics >> Advanced Mycology

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