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Baron_Fel said:

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Lifted1 said:
Merely hot water will most likely not reach high enough temps to pasteurize. I definitely wouldn't throw the coffee in it if you do it.

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the alternative would be to (slowly, carefully) boil water in a microwave using 2 glasses. Worth the effort?

also the coffee would be prepared, liquid stuff not grounds. Would that present more of a contam risk than grounds?

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But not via this tek.
You'd need to properly pasteurize it.

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Javadog said:
Absolutely.

You will want to pasteurize the result properly, as
you said.  Dumping boiling water on poo will not suffice.

Good luck,

JD

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bubbarboss said:
What do you guys think about my substrate ratio? 30% coco coir, 30% verm, 30% steer manure, 5% Oyster shell ( half powder, half chunks), and 5% spent coffee grounds. Another question is I only have horticultural grade verm left would i have to add more to make up for the large grade verm?

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Thats a fine mix but you cant use this tek for that.  With the addition of coffee and manure this substrate will have to be properly pasteurized.  The chunks of oyster shell I would grind up to powder so that it mixes up thoroughly with the rest of your substrate.  Isnt horticultural grade verm the same as coarse verm?  If so you can use the same amount.  I used 2 liters of fine verm with this tek for the longest time with no issues.  I didnt realize that by using fine I should use more.  It worked great IME.  Verm is about $1 a liter where im at so using less is a big difference on the pocket book.  Currently I am using 3 liters of fine verm but I am considering going back and using 2 liter's see if there is any difference   I know its only a dollar but hey its a dollar

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RYEGRAIN said:
Did I just read that I'd have to pasteurize the coffee separately?

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Coffee and manure dont do too well with bucket pasteurization.  It may work for some but its more likely to fail IME.  If your really stuck on using manure or coffee then pasteurize it seperately and properly and add it later when your spawning.

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RYEGRAIN said:
There is a similar tek done by large_dose, here.

It's slightly different where there is more heat being applied to the sub prior to putting in a bucket to cool.

Any comments on that?

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Yea ive seen more failures with this tek than success's it does work for some but I have seen it fail more times than succeed.  I personally tried it a bunch of times and it failed every time but once.  If your going to use manure/coffee goto 's mushroom video's  I think the free clip on manure shows proper pasteurization.  You can do this for manure or coffee and add it to your monto when you spawn.  I know it can be a serious PITA to properly pasteurize but its better doing that then your tubs ending up with trich before the first flush.  I hate getting trich before the first flush.  Its telling me that I did something wrong.  The trich is either in my spawn or my sub.  There are types of trich that stay so white that you cant tell the difference between the trich and mycellium.  Its just waiting til you spawn then it shows up in your mono.

So my thoughts on large dose's tek is its not a good idea.  If your going to use manure/coffee then properly pasteurize it.  You can get away with a bucket tek for coir and that is only cause it is so contam resistant.  Trich loves coffee.  Grows on it so easy and quick.  If your going to use it make sure you prep it properly

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RYEGRAIN said:
Did I just read that I'd have to pasteurize the coffee separately?

There is a similar tek done by large_dose, here.

It's slightly different where there is more heat being applied to the sub prior to putting in a bucket to cool.

Any comments on that?

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