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InvisiblebodhisattaMDiscordReddit
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Re: Official Trusted Cultivator Q&A Thread - Anyone Can Ask, Only TCs Can Answer! [Re: Germs] * 1
    #24709606 - 10/14/17 01:32 PM (6 years, 3 months ago)

Quote:

Germs said:
Can bacteria or other contaminants land on agar and not germinate because of there only being one or two certain unfavorable nutrients, but then when expanded to grains or substrate then the contaminant shows up? Or will anything that lands on the agar start to grow?



A lot of contaminations might not grow on agar and will on something else. Or vice versa may do well on agar and poorly on grain.

Total plate count agar used in QA will grow a lot of aerobic organisms.

For what its worth PDA and MEA and YPD all grow a lot of things well.

Things that spoil beer are anaerobic and very specilaised to tolerate the high abv and hop bitter acids. Theres very special media incubated anaerobically to grow these microorganisms. But not all media grows all spoilage bugs. So many breweries use 2 or 3 different beer agar recipes to plate finished beer on so that hopefully if there is any bugs it will grow on one of the recipes.

Theres a big brewery in town that had an infection they were completely blind to since the two agar mediums they used to test against didn't grow the bug that was in their beer. I got a yeast sample from them and it tested bad. Low and behold it only grew on BMB agar which they didn't use. They ended up having a million dollar product recall because the spoiler eventually over carbonated bottles. It would have cost them so much less if they stopped the problem earlier than spending money on cardboard boxes, six pack holders, bottles, crowns, labels, labor, refrigeration, shipping, and then having to reship them back, and destroy them.

Rather than dumping it out before even filtering it.


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Invisiblevan hattonFacebookDiscord
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Re: Official Trusted Cultivator Q&A Thread - Anyone Can Ask, Only TCs Can Answer! [Re: bodhisatta]
    #24709649 - 10/14/17 01:49 PM (6 years, 3 months ago)

So would grain water agar be best for the purpose of finding these things.

Since it's the grain were growing on anyways wouldn't anything that would grow on grain be the same for the agar? And vice versa.


--------------------
If I ever give out misinformation please inform me so I can have the correct information. :cheers:

Tmethyl said:
Chuck Norris once roundhouse kicked a monotub that wasn't pinning fast enough. The force of the kick rearranged the genetics of the mushrooms, we now call them Penis Envy.

Caps McGee said:
:thumbsup:
Fun part is figuring out what works best for you


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InvisiblebodhisattaMDiscordReddit
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Re: Official Trusted Cultivator Q&A Thread - Anyone Can Ask, Only TCs Can Answer! [Re: van hatton]
    #24709661 - 10/14/17 01:52 PM (6 years, 3 months ago)

Quote:

van hatton said:
So would grain water agar be best for the purpose of finding these things.

Since it's the grain were growing on anyways wouldn't anything that would grow on grain be the same for the agar? And vice versa.



Likely. Thats the idea behind diy beer agar.
Theres other media they make. Such as universal beer agar UBA it has things like tomato extract to help encourage colonies of beer spoliling lactobacillus to form since they like to grow in beer but not on agar a lot of times


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Invisiblevan hattonFacebookDiscord
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Re: Official Trusted Cultivator Q&A Thread - Anyone Can Ask, Only TCs Can Answer! [Re: bodhisatta]
    #24709677 - 10/14/17 01:58 PM (6 years, 3 months ago)

:takingnotes: so possibly be able to make a universal agar for testing for possible hidden contams. Or something. :stoned:


--------------------
If I ever give out misinformation please inform me so I can have the correct information. :cheers:

Tmethyl said:
Chuck Norris once roundhouse kicked a monotub that wasn't pinning fast enough. The force of the kick rearranged the genetics of the mushrooms, we now call them Penis Envy.

Caps McGee said:
:thumbsup:
Fun part is figuring out what works best for you


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InvisiblebodhisattaMDiscordReddit
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Re: Official Trusted Cultivator Q&A Thread - Anyone Can Ask, Only TCs Can Answer! [Re: van hatton]
    #24709695 - 10/14/17 02:05 PM (6 years, 3 months ago)

Nope just make PCR cheaper and cheaper. Agar for QA will be old news in a few years once even mom and pop places can afford something that gives results in the same day vs waiting 7 for incubation

Agar will still have use but no one will be trying to find spoilers with it in industry

Even universal beer agar isn't universal they're always trying to make a better recipe that grows every spoiler known


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InvisibleMunchauzen
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Re: Official Trusted Cultivator Q&A Thread - Anyone Can Ask, Only TCs Can Answer! [Re: Germs]
    #24709722 - 10/14/17 02:17 PM (6 years, 3 months ago)

Quote:

Germs said:
anything that lands on the agar start to grow



nothing hides on agar


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InvisiblebodhisattaMDiscordReddit
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Re: Official Trusted Cultivator Q&A Thread - Anyone Can Ask, Only TCs Can Answer! [Re: Munchauzen]
    #24709732 - 10/14/17 02:21 PM (6 years, 3 months ago)

Quote:

Munchauzen said:
Quote:

Germs said:
anything that lands on the agar start to grow



nothing hides on agar



That's just not true. tuberculosis wont grow on any of our agars, but theoretically could get on one. Same goes with anaerobic bacteria, if not all of them die they still may be transferred around on aerobic plates. Which is a problem growing yeast on ypd then using it for beer in which a unseen anaerobic organism can later find itself in an appropriate home


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InvisibleGerms
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Re: Official Trusted Cultivator Q&A Thread - Anyone Can Ask, Only TCs Can Answer! [Re: bodhisatta]
    #24709735 - 10/14/17 02:23 PM (6 years, 3 months ago)

Quote:

bodhisatta said:
Quote:

van hatton said:
So would grain water agar be best for the purpose of finding these things.

Since it's the grain were growing on anyways wouldn't anything that would grow on grain be the same for the agar? And vice versa.



Likely. Thats the idea behind diy beer agar.
Theres other media they make. Such as universal beer agar UBA it has things like tomato extract to help encourage colonies of beer spoliling lactobacillus to form since they like to grow in beer but not on agar a lot of times



Quote:

bodhisatta said:
Quote:

Munchauzen said:
Quote:

Germs said:
anything that lands on the agar start to grow



nothing hides on agar



That's just not true. tuberculosis wont grow on any of our agars, but theoretically could get on one



That’s mainly why I was just curious, because I blew heavily on one plate and spit on another a few months back just to see what would happen and surprisingly the one I blew on didn’t grow anything.
The other one looked fucking gross after 4-5 days lol


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InvisiblebodhisattaMDiscordReddit
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Re: Official Trusted Cultivator Q&A Thread - Anyone Can Ask, Only TCs Can Answer! [Re: Germs]
    #24709740 - 10/14/17 02:24 PM (6 years, 3 months ago)

Streptococcus would not grow well on our plates if at all. But you could spit on a plate and it could get there. Theyre usually facultative anaerobes so they'll likely form no colony. And would thus hide on typical media

Hospital labs work would be a lot cheaper and easier if they only had to use MEA


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Invisiblestareatclouds
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Re: Official Trusted Cultivator Q&A Thread - Anyone Can Ask, Only TCs Can Answer! [Re: bodhisatta]
    #24710609 - 10/14/17 09:20 PM (6 years, 3 months ago)

Quote:

bodhisatta said:
You do close off GE on slants all the way after they colonize. Theb store them.




Wait, what? I remember RR's video advocating storage after Parafilm with the a bit loose, but Frank snaps his air-tight. I remember researching more and seeing RR and others saying cutting off all air will kill the mycelium. Found another post with a guy comparing slants of Parafilm and air-tight and air-tight ones didn't regrow. Is this horseshit?

Thanks, eat. Going to try out my old LI soon enough.


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Re: Official Trusted Cultivator Q&A Thread - Anyone Can Ask, Only TCs Can Answer! [Re: stareatclouds]
    #24711108 - 10/15/17 04:15 AM (6 years, 3 months ago)

I've never closed off my slants to GE. they are just wrapped in parafilm and put in an insulated lunchbox in my fridge. seems to have worked fine for my slants that I keep for ~a year or so.


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Re: Official Trusted Cultivator Q&A Thread - Anyone Can Ask, Only TCs Can Answer! [Re: Munchauzen]
    #24712346 - 10/15/17 04:41 PM (6 years, 3 months ago)

Hey Guys,

I went out and bought the biggest tub i could find, althou i believe it might be too big...

Size : 79.5cm x 58cm x 43.5cm / 2.6ft x 1.9ft x 1.4ft

I would like to use this as a fruiting chamber for BRF PFTek Jar cakes & Mini Flat cakes. Do you think it will work out ? Let me know your thoughts.

2nd:

-Mini Flat cakes: created by mixing new subtrate with fully colonized mycellium jar grated up in a tray.

^^^ Is this a good method to do? I am limited to one syringe, and this seems worth it if i can double the cake size with only a extra week of waiting.

Thanks alot!


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InvisibleF. 3
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Re: Official Trusted Cultivator Q&A Thread - Anyone Can Ask, Only TCs Can Answer! [Re: AfricaDabMan710]
    #24712752 - 10/15/17 07:34 PM (6 years, 3 months ago)

Hi. I made a mono 45l box. P.cube Ecuador
ratio 1:2 spawn - coir.
no date stamp (bravo)
But the most it could be standing at 28C is 14days.
I did not trim the liner, just inverted the edge on all sides of the box and covered with lid for GA.

How does it look?
Thats water droplets covering mycelium.



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InvisiblebodhisattaMDiscordReddit
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Re: Official Trusted Cultivator Q&A Thread - Anyone Can Ask, Only TCs Can Answer! [Re: F. 3]
    #24712762 - 10/15/17 07:37 PM (6 years, 3 months ago)

Hopefully does well. 28c is very hot try 18-24 20-22is a good range


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InvisibleF. 3
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Re: Official Trusted Cultivator Q&A Thread - Anyone Can Ask, Only TCs Can Answer! [Re: bodhisatta]
    #24712767 - 10/15/17 07:41 PM (6 years, 3 months ago)

Should I sprinkle a light layer of dry verm and put it in fruiting?


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OfflineDiggler
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Re: Official Trusted Cultivator Q&A Thread - Anyone Can Ask, Only TCs Can Answer! [Re: Munchauzen]
    #24712855 - 10/15/17 08:22 PM (6 years, 3 months ago)

Question about grain spawn inoculation. My first time inoculating jars (WBS), it was with a TEK that used a Tyvek filter on the outside top, and 1 single small hole with a self healing silicone port. So basically, after you pull out the syringe, the jar is basically sealed with no GE. The jars actually colonized nicely, but I don't understand why, since there was no method of GE.
Without knowing, I did a G2G transfer using this same type of jar/filter, and the mycelium grew a little bit and then completely stalled. After waiting another week, I did some reading, and decided to drill another hole in the jar and then cover with micropore tape.. There was a gush of (air?Co2?) that either came in or out of the jar, once the lid was punctured. Then the jars proceeded to colonize.

So I was just curious why the initial jars were even able to colonize with a spore syringe in the first place. It seems like they shouldn't have been able to do so with no GE.
Thanks.


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OfflineKidMyco4296
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Re: Official Trusted Cultivator Q&A Thread - Anyone Can Ask, Only TCs Can Answer! [Re: Diggler]
    #24712965 - 10/15/17 09:09 PM (6 years, 3 months ago)

Should I knock up my agar straight from the syringe or use my makeshift inoculation loop I made from a bread tie?
I've never used one bc I'm kind of a newb and don't know how.


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OfflineKidMyco4296
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Re: Official Trusted Cultivator Q&A Thread - Anyone Can Ask, Only TCs Can Answer! [Re: KidMyco4296]
    #24714447 - 10/16/17 02:43 PM (6 years, 3 months ago)

Found a spot on my dish that doesn't look like mycelium. Any ideas as to what it might be?


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InvisiblebodhisattaMDiscordReddit
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Re: Official Trusted Cultivator Q&A Thread - Anyone Can Ask, Only TCs Can Answer! [Re: KidMyco4296]
    #24714480 - 10/16/17 02:55 PM (6 years, 3 months ago)

Contamination. If you have a microscope make a slide and you'll be able to get a better idea


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Re: Official Trusted Cultivator Q&A Thread - Anyone Can Ask, Only TCs Can Answer! [Re: bodhisatta]
    #24714492 - 10/16/17 02:58 PM (6 years, 3 months ago)

Damn. Well thanks. It's my first time using agar so I guess all I can do is keep trying. Should I remove it from the rest of the dishes?


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