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Home Grower
Stranger


Registered: 11/19/13
Posts: 318
Last seen: 4 days, 23 hours
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Can you use old and exhausted BRF cakes to spawn a Monotub substrate with?
#24276334 - 04/27/17 03:28 PM (7 years, 8 months ago) |
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Hi good people, let's say that I can get from somebody a few old and discarded BRF cakes that have been harvested many times and do not produce mushrooms anymore. Will these exhausted cakes be any good for spawning a Monotub substrate with? Or is the mycelium in such depleted cakes too old and/or too contaminated? Thanks!
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lovelaughlibs
Dopamine Slave



Registered: 10/14/15
Posts: 1,811
Loc: England
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Re: Can you use old and exhausted BRF cakes to spawn a Monotub substrate with? [Re: Home Grower]
#24276352 - 04/27/17 03:33 PM (7 years, 8 months ago) |
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Nutrients will be used up, and bulk substrates tend to not have a huge amount of nutrition. You can't add more nutrients without causing a huge contamination risk, so just toss the cakes.
-------------------- Ask and ye shall receive; Seek and ye shall find.
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mynakedrat
The phantom hourglass



Registered: 02/16/17
Posts: 4,629
Loc: Inner Astral levels
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Re: Can you use old and exhausted BRF cakes to spawn a Monotub substrate with? [Re: lovelaughlibs]
#24276419 - 04/27/17 04:08 PM (7 years, 8 months ago) |
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Put them in a houseplant
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bodhisatta 
Smurf real estate agent


Registered: 04/30/13
Posts: 61,915
Loc: Milky way
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Re: Can you use old and exhausted BRF cakes to spawn a Monotub substrate with? [Re: mynakedrat]
#24276440 - 04/27/17 04:16 PM (7 years, 8 months ago) |
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Just_A_Noob



Registered: 12/30/16
Posts: 6,809
Loc: PNW
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Re: Can you use old and exhausted BRF cakes to spawn a Monotub substrate with? [Re: bodhisatta]
#24276676 - 04/27/17 05:28 PM (7 years, 8 months ago) |
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Munchauzen


Registered: 06/22/11
Posts: 14,348
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Re: Can you use old and exhausted BRF cakes to spawn a Monotub substrate with? [Re: mynakedrat]
#24276762 - 04/27/17 06:00 PM (7 years, 8 months ago) |
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Quote:
mynakedrat said: Put them in a houseplant
I don't recommend this. They don't fruit well, and I've had more than one turn into a healthy fungus gnat colony. Just toss the spent cakes and make more.
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Home Grower
Stranger


Registered: 11/19/13
Posts: 318
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Re: Can you use old and exhausted BRF cakes to spawn a Monotub substrate with? [Re: Munchauzen]
#24277215 - 04/27/17 08:54 PM (7 years, 8 months ago) |
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Thanks for your replies. I read a few reports from people who have used spent cakes to spawn Monotubs with success. Guess I will give it a try too. Worst that can happen is I lose 5 Euros worth of materials.
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Hunter S Hoffman
Psychonautic Warrior


Registered: 04/04/17
Posts: 28
Last seen: 7 years, 7 months
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Re: Can you use old and exhausted BRF cakes to spawn a Monotub substrate with? [Re: lovelaughlibs]
#24277218 - 04/27/17 08:56 PM (7 years, 8 months ago) |
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Quote:
lovelaughlibs said: Nutrients will be used up, and bulk substrates tend to not have a huge amount of nutrition. You can't add more nutrients without causing a huge contamination risk, so just toss the cakes.
I was under the impression bulk substrates contain lots of nutrients hence the higher yield. I believe I've read RR explicitly state Coco coir is a bulk substrate and contains lots of nutrients I think you out have casing and bulk confused. As a matter of fact casing should contain no Nutes e.g. Vermiculite and peat moss, and it is for this reason they don't significantly increase yield.
One of the reason spent cakes are bad for bulk is the increased risk of contamination, as the cake has been exposed to open air for likely a week at least. Contams flourish in bulk sub because of the Nutes
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mushboy
modboy



Registered: 04/24/05
Posts: 35,378
Loc: eating the cats
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Re: Can you use old and exhausted BRF cakes to spawn a Monotub substrate with? [Re: Hunter S Hoffman]
#24277281 - 04/27/17 09:32 PM (7 years, 8 months ago) |
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bigger yields come from water. you BULK up the spawn with more water and mass for more shrooms nutes have little to do with it.
contams flourish in bulk subs because of bad spawn.
make some coco based substrate and just toss it somewhere. put in a ziplock and put in a suck drawer. shit stays good for a loooooooooooooong time. poo based subs are different because of all the microbe action.
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TheMadHatter420
Trusted Farmer


Registered: 10/12/16
Posts: 12,943
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Re: Can you use old and exhausted BRF cakes to spawn a Monotub substrate with? [Re: Hunter S Hoffman]
#24277292 - 04/27/17 09:36 PM (7 years, 8 months ago) |
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Coir DOES NOT have lots of nutrients. That is why we do not have to pasteurize it nor sterilize it. We only apply boils water to cook it, making it easier for the shrooms to colonize. It has very little to no nutritional value.
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Home Grower
Stranger


Registered: 11/19/13
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Last seen: 4 days, 23 hours
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Re: Can you use old and exhausted BRF cakes to spawn a Monotub substrate with? [Re: TheMadHatter420]
#24277310 - 04/27/17 09:41 PM (7 years, 8 months ago) |
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Very interesting discussion, guys.
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Dacauz
Stranger

Registered: 08/14/16
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Re: Can you use old and exhausted BRF cakes to spawn a Monotub substrate with? [Re: Home Grower]
#24277324 - 04/27/17 09:46 PM (7 years, 8 months ago) |
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Coir has almost 0 nutes. You will get a few mushrooms however they will be much smaller and obviously defunct of its nutrients needed to grow. Ive done this once with some Amazonian cakes and some extra choir I had from a rye mono tub just as an experiment. I was surprised I got a few shrooms but a quarter off 10 spent cakes is just wasted time and resources.
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mushboy
modboy



Registered: 04/24/05
Posts: 35,378
Loc: eating the cats
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Re: Can you use old and exhausted BRF cakes to spawn a Monotub substrate with? [Re: Dacauz] 1
#24277334 - 04/27/17 09:49 PM (7 years, 8 months ago) |
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we arnt talking about making cakes with coco. we are talking about spawning to bulk.
Quote:
Dacauz said: You will get a few mushrooms however they will be much smaller and obviously defunct of its nutrients needed to grow.
grown on coco 
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bodhisatta 
Smurf real estate agent


Registered: 04/30/13
Posts: 61,915
Loc: Milky way
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Re: Can you use old and exhausted BRF cakes to spawn a Monotub substrate with? [Re: Dacauz]
#24277348 - 04/27/17 09:56 PM (7 years, 8 months ago) |
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Quote:
Dacauz said: Coir has almost 0 nutes. You will get a few mushrooms however they will be much smaller and obviously defunct of its nutrients needed to grow.
 All my tubs are straight coir and half pounds first flush
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Home Grower
Stranger


Registered: 11/19/13
Posts: 318
Last seen: 4 days, 23 hours
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Re: Can you use old and exhausted BRF cakes to spawn a Monotub substrate with? [Re: bodhisatta]
#24277400 - 04/27/17 10:15 PM (7 years, 8 months ago) |
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Quote:
bodhisatta said:
Quote:
Dacauz said: Coir has almost 0 nutes. You will get a few mushrooms however they will be much smaller and obviously defunct of its nutrients needed to grow.
 All my tubs are straight coir and half pounds first flush
Maybe the shrooms feed on the rye berries from the spawn and not on the coco coir?  
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mushboy
modboy



Registered: 04/24/05
Posts: 35,378
Loc: eating the cats
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Re: Can you use old and exhausted BRF cakes to spawn a Monotub substrate with? [Re: mushboy]
#24277402 - 04/27/17 10:16 PM (7 years, 8 months ago) |
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Quote:
mushboy said: bigger yields come from water. you BULK up the spawn with more water and mass for more shrooms nutes have little to do with it.
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bodhisatta 
Smurf real estate agent


Registered: 04/30/13
Posts: 61,915
Loc: Milky way
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Re: Can you use old and exhausted BRF cakes to spawn a Monotub substrate with? [Re: Home Grower]
#24277414 - 04/27/17 10:21 PM (7 years, 8 months ago) |
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Quote:
Home Grower said:
Quote:
bodhisatta said:
Quote:
Dacauz said: Coir has almost 0 nutes. You will get a few mushrooms however they will be much smaller and obviously defunct of its nutrients needed to grow.
 All my tubs are straight coir and half pounds first flush
Maybe the shrooms feed on the rye berries from the spawn and not on the coco coir?   
Yep nutrition comes from the spawn or supplements used
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Hunter S Hoffman
Psychonautic Warrior


Registered: 04/04/17
Posts: 28
Last seen: 7 years, 7 months
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Re: Can you use old and exhausted BRF cakes to spawn a Monotub substrate with? [Re: bodhisatta]
#24280184 - 04/28/17 11:15 PM (7 years, 8 months ago) |
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Quote:
RogerRabbit said: Prior to my experiments with coir as a bulk substrate, people used to say coir has no 'nutes', because it's advertised that way for growing plants. However, no 'nutes' for plants and no 'nutes' for mushrooms are two totally different parameters. Coir makes an excellent bulk substrate, especially when mixed with vermiculite, which the mycelium also digests for the minerals. RR
Read it and weep.
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Munchauzen


Registered: 06/22/11
Posts: 14,348
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Re: Can you use old and exhausted BRF cakes to spawn a Monotub substrate with? [Re: Hunter S Hoffman]
#24280187 - 04/28/17 11:16 PM (7 years, 8 months ago) |
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mushboy
modboy



Registered: 04/24/05
Posts: 35,378
Loc: eating the cats
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Re: Can you use old and exhausted BRF cakes to spawn a Monotub substrate with? [Re: Hunter S Hoffman]
#24280198 - 04/28/17 11:19 PM (7 years, 8 months ago) |
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coir has no nutes in the traditional sense. that quote has nothing to do with what we would be 'weeping' for. sure it has minerals and other things for the mushroom but so does dirt. you could eat dirt and get some minerals and 'nutes'
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