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Offlinetrippatient
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Registered: 08/24/08
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Help! casings keep getting contamed! what am i doing wrong???
    #10099130 - 04/03/09 07:53 AM (14 years, 11 months ago)

i have five casings that contamed with trich. three contamed after the first flush and one contamed before the first flush even came through.

when i dumped it out the trich was spread to the substrate which i didnt even see

WHAT AM I DOING WRONG???

i crumble and case as usual, spraying the air with lysol before hand, then lightly case with unpasteurized 50/50 with no lime added to it.

is this my problem? i didnt pasteurize because i read a post of RR's saying that im better off not doing anything to my casing layer because of the beneficial microbes in the casing.

also, does lime make a casing layer more contam resistant?

thanks in advance for any advice

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Offlineiskinbash
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Re: Help! casings keep getting contamed! what am i doing wrong??? [Re: trippatient]
    #10099159 - 04/03/09 08:12 AM (14 years, 11 months ago)

pasteurizing shouldnt kill the microbes, but sterilization would. RR told me that you want to pasteurize your casing layer. Thats prob where your getting your contams from. You need to do something to it.


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*iskinbash is merely a fictional character placed in a real life environment.

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Invisiblegoldieman
On some other shit!


Registered: 08/15/07
Posts: 296
Loc: midwest
Re: Help! casings keep getting contamed! what am i doing wrong??? [Re: trippatient]
    #10099171 - 04/03/09 08:21 AM (14 years, 11 months ago)

Quote:

trippatient said:
i have five casings that contamed with trich. three contamed after the first flush and one contamed before the first flush even came through.

when i dumped it out the trich was spread to the substrate which i didnt even see

WHAT AM I DOING WRONG???

i crumble and case as usual, spraying the air with lysol before hand, then lightly case with unpasteurized 50/50 with no lime added to it.

is this my problem? i didnt pasteurize because i read a post of RR's saying that im better off not doing anything to my casing layer because of the beneficial microbes in the casing.

also, does lime make a casing layer more contam resistant?

thanks in advance for any advice




so you crumble brf cakes and case with unpasteurized 50/50 w/ no additives? i see alot wrong right there. when rr says what he says, he's assuming you can provide optimal conditions, and that you have a basic knowledge/experience in cultivating mushrooms. since it sounds like you dont have that experience, heres a couple tips.

first, when you crumble your cakes, do you give them time to recover before adding casing? i would crumble, wait a couple days, and then case. that way the mycelium can recover and form that solid network that gives it more of a contam resistance.

second, i would follow a true and tried tek of 50/50+. that means half verm, half peat, about 10% calcium carbonate and at least 1 tablespoon of hydrated lime  per quart of peat. get a ph tester and get it above 8 before applying it to crumbled cakes. that low ph is a fav for trich. pateurize it in bags, jars; microwave, pc, boil in pot... there are plenty teks in the forum that a thorough search will provide you.

i truly think that casing is what did you in. and the reason it got down into your sub i believe is because the substrate was exposed to that casing without there being an strong network of mycelium between the casing and substrate. if that makes any sense.

good luck my friend. do some serious reading. and you'll get it straight. worse case scenario try using only verm as a casing. i know its not ideal, but many including myself have had luck with it in the past.

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Offlinetrippatient
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Re: Help! casings keep getting contamed! what am i doing wrong??? [Re: iskinbash]
    #10099174 - 04/03/09 08:22 AM (14 years, 11 months ago)

yesterday, i microwaved some casing in with water for about 15 min, when i took it out, it was dry.

is this pasteurization or sterilization?

and what about the lime? does it fight contams?

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Offlinetrippatient
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Re: Help! casings keep getting contamed! what am i doing wrong??? [Re: trippatient]
    #10099181 - 04/03/09 08:26 AM (14 years, 11 months ago)

ok, so if i were to case with pure verm, this would prevent contamination?

and what is calcium carbonate and where can i buy it?

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Offlineiskinbash
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Re: Help! casings keep getting contamed! what am i doing wrong??? [Re: trippatient]
    #10099188 - 04/03/09 08:28 AM (14 years, 11 months ago)

i think microwaving for 15 minutes would be sterilization, but that depends on the temperature the casing material reached in the microwave. if it was dry when you took it out, i dont think you had hydrated it enough, not to mention 15 minutes is a bit long... The lime will help the ph of the casing layer, and apperently trich loves the lower ph? Lime will raise it. I use a product called Jiffy Mix. Its a premixed bag of 50/50 peat/verm with added lime. I get it at home depot for just a few dollars a bag. You can add some gypsum (calcium carbonate) to it as well.


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Offlinetrippatient
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Re: Help! casings keep getting contamed! what am i doing wrong??? [Re: trippatient]
    #10099200 - 04/03/09 08:32 AM (14 years, 11 months ago)

ok im gonna buy jiffy mix. is it pasteurized out of the bag? or do i have to pasteurize it myself?

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Invisiblegoldieman
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Registered: 08/15/07
Posts: 296
Loc: midwest
Re: Help! casings keep getting contamed! what am i doing wrong??? [Re: trippatient]
    #10099212 - 04/03/09 08:37 AM (14 years, 11 months ago)

Quote:

trippatient said:
ok, so if i were to case with pure verm, this would prevent contamination?

and what is calcium carbonate and where can i buy it?




you can buy it at most garden centers or nurserys. pure verm wouldn't prevent contams exactly. anything can contam. it's proper technique that prevents contams. the only way to perfect your technique is to practice. and to READ,READ,READ... and then READ some more. and then keep reading.

i've been reading posts on this forum for the past two years daily and still feel like i dont know shit. but i have been able to keep contams at bay. so i have learned something.

you need to do some studying. if you use the search function theres a post by dumbfounded1600 that says, "all of rr's notes in one post". if you don't know, rr is for rogerrabbit. he is a trusted cultivator on this forum and knows his shit. read that super long post a couple times. i guarantee you will be smarter when you're done.

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Offlineiskinbash
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Re: Help! casings keep getting contamed! what am i doing wrong??? [Re: goldieman]
    #10099229 - 04/03/09 08:43 AM (14 years, 11 months ago)

no, youre going to need to pasteurize the jiffy mix before use. Its just convenient that its all pre-mixed.


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OfflineCaptain Caveman
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Re: Help! casings keep getting contamed! what am i doing wrong??? [Re: iskinbash]
    #10099509 - 04/03/09 10:10 AM (14 years, 11 months ago)

At least you know wtf your contam IS. I have been battling this yellow shit, and after my current subs flush out, im gonna have to give that room a good douching :laugh:


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OfflineBrennus
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Re: Help! casings keep getting contamed! what am i doing wrong??? [Re: Captain Caveman]
    #10099550 - 04/03/09 10:18 AM (14 years, 11 months ago)

You have to pasteurize your casing layer. Casing layer problems aside, if your grows are contaminating before your first flush, you probably have bad spawn.

P. Cubensis doesn't even need a casing layer - substituting crumpled wax paper will actually improve yields over a traditional casing.

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OfflineCaptain Caveman
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Re: Help! casings keep getting contamed! what am i doing wrong??? [Re: Brennus]
    #10099570 - 04/03/09 10:21 AM (14 years, 11 months ago)

Quote:

Brennus said:
You have to pasteurize your casing layer. Casing layer problems aside, if your grows are contaminating before your first flush, you probably have bad spawn.

P. Cubensis doesn't even need a casing layer - substituting crumpled wax paper will actually improve yields over a traditional casing.



But only if you have OPTIMAL conditions does it play on par with casing.


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OfflineRogerRabbitM
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Re: Help! casings keep getting contamed! what am i doing wrong??? [Re: Captain Caveman]
    #10099602 - 04/03/09 10:26 AM (14 years, 11 months ago)

Peat must have lime added when used as a casing material.  I've never recommended not heat treating casing layers.  I've experimented myself with untreated casing layers on such species as P cyanescens, shaggy manes, and agaricus which require microbes in the casing layer to fruit, but if you're growing cubensis, you should always pasteurize the casing layer material.

Microwaves are not suitable for mycology in any way, shape or form, and I've never recommended using them.
RR


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Offlineskattman1982
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Re: Help! casings keep getting contamed! what am i doing wrong??? [Re: Captain Caveman]
    #10099786 - 04/03/09 11:01 AM (14 years, 11 months ago)

Quote:

RogerRabbit said:
Peat must have lime added when used as a casing material.  I've never recommended not heat treating casing layers.  I've experimented myself with untreated casing layers on such species as P cyanescens, shaggy manes, and agaricus which require microbes in the casing layer to fruit, but if you're growing cubensis, you should always pasteurize the casing layer material.

Microwaves are not suitable for mycology in any way, shape or form, and I've never recommended using them.
RR



:rockon:

microwaves dont usually even heat evenly so why bother? use steam or hot water to pastuerize every time you case a sub. end of story. get this right and you shouldnt have a problem with mold in your casing.
Quote:

Captain Caveman said:
Quote:

Brennus said:
You have to pasteurize your casing layer. Casing layer problems aside, if your grows are contaminating before your first flush, you probably have bad spawn.

P. Cubensis doesn't even need a casing layer - substituting crumpled wax paper will actually improve yields over a traditional casing.



But only if you have OPTIMAL conditions does it play on par with casing.




wax paper can get soggy and lead to contams especially if you are already having a problem with mold. you might have some wax paper laying around and think well sit easy fix but you shouldnt recommend something like this to a noob who cant even get more than a lucky flush with a cased sub

learn how to properly pastuerize casing materials before messing around with different methods. besides... as was pointed out earlier in this thread cubensis does not even need a casing layer to fruit, hence part of the reason why cakes are considered noob friendly. go to the mush cult archive and read up on casings and casing prep.


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They lie about marijuana. Tell you pot-smoking makes you unmotivated. Lie! When you're high, you can do everything you normally do, just as well. You just realize that it's not worth the fucking effort. There is a difference.-Bill Hicks-

by the way, everything i write is for entertainment purposes and is purely fictional. do not construe these written words with the author having any knowledge of actual persons, places, events, or actions.

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