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green.giant
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Registered: 05/22/14
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When to throw out Cakes
#21282796 - 02/16/15 01:10 PM (9 years, 3 months ago) |
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So, just curious, I haven't been able to find anything that gives a good guideline of when to throw out BRF cakes other than "when you see mold/contamination get rid of the cake"....what if all of the cakes in question have flushed 3 times with no noticable contams, but a vastly lower yield on the third flush, is it worth the risk of contamination trying to get a fourth flush? Especially if quantity is not of concern, just worried about contams fucking up future projects. So, to throw or not to throw after 3 flushes? I have heard people getting upwards of five before contams set in, so why risk it is my perspective.
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taGyo
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Go for it.
IMO if your third flush was lack luster do you really expect a fourth one to yield more? If they haven't contamed yet it means you did a good job.
-------------------- Gyo's Better Grows TNF Q&A AMU Q&A Dominus fortunae meae sum
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green.giant
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Re: When to throw out Cakes [Re: taGyo]
#21283025 - 02/16/15 01:54 PM (9 years, 3 months ago) |
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Thats what my intuition was, just to toss them out after 3rd flush....but while i have this thread open I wanted to address a couple other interesting issues which I haven't found direct answers for after searching the forums.
So during the first flush I had no issues whatsoever keeping RH at 99%...even with 4 to 5 hour absences between misting/fanning. After first flush, I redunked the cakes, placed back in sgfc.
It is now impossible for me to even get the RH up to 99%, it seems to be fluctuating to a much more extreme degree (the trend has continued on the 3rd flush)..keep in mind, absolutely nothing has changed in regards to the location of the chamber, ambient room temperature, etc.
After realizing i couldn't get the RH up to 99 during my second flush I re soaked the perlite thinking it was just a matter of things drying out...well that didn't help in the slightest, in fact that is when the second issue started.
I made sure to drain all of the water just as I did before the first flush before placing the perlite back in the chamber, but now when I mist (I am misting using the same methods I had previously) the water trickles out through the bottom and onto the tray I have beneath my chamber ( it is elevated on half pint jars).
I didn't experience either of these issues during the whole duration of the first flush, any insights?
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GreenRabbit
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When fruiting cakes I usually go til about 4 or 5. I like to have my cycles overlap. If you have room for them and there is still a yield why bother tossing it?
Tubs are usually spent after 3 flushes and its more efficient to start a new one.
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Mushroom_J
Hard to the Coir !



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Your hygrometer is garbage more than likely. There's only a few that actually work and they're expensive.
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taGyo
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You don't want 99% RH, you want fluctuation like cubensis have in the wild, that's why we have holes in our chamber and not a sealed off tote.
If you're judging by a hygrometer then that's your problem. If your fruits are growing big and strong you don't have a humidity problem. If your cakes aren't drying out and your fruits aren't blue you don't have a humidity problem.
-------------------- Gyo's Better Grows TNF Q&A AMU Q&A Dominus fortunae meae sum
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GreenRabbit
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Re: When to throw out Cakes [Re: Mushroom_J]
#21283060 - 02/16/15 02:01 PM (9 years, 3 months ago) |
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Quote:
Mushroom_J said: Your hygrometer is garbage more than likely. There's only a few that actually work and they're expensive.
^^^ My guess is it was digital...
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green.giant
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The reason I would bother tossing it prematurely is because yield is of no concern currently, therefore, to answer your question "why bother tossing it", is because I want to boil the perlite between tossing the old cakes and placing freshly colonized cakes in the chamber, again my main concern is to prevent contam from ever appearing which from what it seems is the biggest issue with this hobby so I am trying to prevent it from ever becoming an issue.
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taGyo
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Don't boil the perlite just re-hydrate it.
The air coming in to your SGFC is not sterile. The moment your cakes leave that jar they are not sterile. Sterility doesn't matter after birthing, I do everything with my bare hands after birthing.
-------------------- Gyo's Better Grows TNF Q&A AMU Q&A Dominus fortunae meae sum
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GreenRabbit
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I've never bothered to boil perlite and used it for over 2 months at a time... Shits pretty cheap anyway if that what you're worried about. Just replace your perlite and keep it going, then boil the old perlite if you're really trying to save it.
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green.giant
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And your guess would be correct, 15$ from lowes....but still doesnt explain why it was reading 99% for the whole first flush and has been consistently lower, never reaching 99% after dunking the cakes and placing them in for the 2nd flush...
Also, the issue with the leaky perlite still concerns me, what I am now thinking is that I have been mislead by my cheap hygrometer into thinking it wasn't saturated, I then started misting more than I thought I was originally and resoaked the perlite leading to oversaturation of the perlite and it leaking out the bottom....sound logic?
Last question I will ask in this thread....if I wanted to take prints, would the very last flush be the best specimens to choose from? My logic tells me that the last flush is going to contain some of the more hardy specimens (capable of growing in low nutrient/moisture content) that would thrive in the first/second flush stage?
Thanks for the insights~!
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taGyo
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Prints can be taken from all flushes,
Clones should be taken from the first. It's your thread, ask whatever you want. Leaky perlite just means you didn't wait until it got dry enough to load. It really doesn't matter, the perlite doesn't hold the water just traps it against its surface.
It was reading 99% because it was inaccurate. 15 dollar hygrometer from lowes is exactly what we mean by cheap hygrometer.
-------------------- Gyo's Better Grows TNF Q&A AMU Q&A Dominus fortunae meae sum
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Mushroom_J
Hard to the Coir !



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boiling perlite : "This is the correct method. You could bake it in an oven, but boiling it in water also rinses it well at the same time. For those who chose to bake the perlite in an oven, this is fine, but be sure to rinse well under the faucet before placing back in the terrarium. RR "
" In the future, rather than bleach I'd suggest dumping the perlite in a large pot and boiling it for half an hour or so. That will kill any nasties and wash the mycelium and loose substrate out of it as well. RR"
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GreenRabbit
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Quote:
green.giant said: And your guess would be correct, 15$ from lowes....but still doesnt explain why it was reading 99% for the whole first flush and has been consistently lower, never reaching 99% after dunking the cakes and placing them in for the 2nd flush...
Digital hygrometers do not work above 90%. You might as well not have had it in there.
Quote:
green.giant said: My logic tells me that the last flush is going to contain some of the more hardy specimens (capable of growing in low nutrient/moisture content) that would thrive in the first/second flush stage?
No. They will all be the same. Its a crap shoot of spores every time.
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taGyo
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Re: When to throw out Cakes [Re: taGyo]
#21283168 - 02/16/15 02:19 PM (9 years, 3 months ago) |
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Quote:
taGyo said: The air coming in to your SGFC is not sterile. The moment your cakes leave that jar they are not sterile. Sterility doesn't matter after birthing, I do everything with my bare hands after birthing.
What would boiling do if you're just going to set it back into the dirty air? The "nasties" will come right back. Your tote is also not sterile. Are you going to boil that in water too?
RR also said to bake your verm. I've never done that.
-------------------- Gyo's Better Grows TNF Q&A AMU Q&A Dominus fortunae meae sum
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bummerhigh
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Re: When to throw out Cakes [Re: taGyo]
#21283170 - 02/16/15 02:19 PM (9 years, 3 months ago) |
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I had substrate last grow that never contaminated indoors. I kept dunking I forget how many times. until one time I put the cakes in the water looked at them with dissatisfaction, no bubbles coming up from the water, nothing to go on. I gave them maybe a week to pin then kicked them outside in the snow. maybe they will hibernate until spring
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LumpyNutz
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Re: When to throw out Cakes [Re: taGyo]
#21283196 - 02/16/15 02:24 PM (9 years, 3 months ago) |
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I figure As Long As Your cakes ate Still flushing, and Have No contam, Keep em Going! usually Mine will completely stop fruiting at about 3 flushes. But If You see Very little/No pIn growth on a cake for like 2 weeks straight I Would assume That Cake is spent and Just toss It.
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Mushroom_J
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Re: When to throw out Cakes [Re: taGyo]
#21283395 - 02/16/15 03:02 PM (9 years, 3 months ago) |
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Keeps bacteria from building up. Makes it look clean lol. After a while the perlite starts to wreak.
I always just dunked the whole tub in a sink with a mild bleach solution. There's also the chance of algae growing if it's always moist and not cleaned. I have well water, and after a while the perlite turns an ugly yellow color.
It's not very urgent since your cakes should be healthy to begin with. It doesn't hurt either. My friend used cow manure boiled in a pillow case instead of perlite lol... and jammed the cakes right into it. He got 2 flushes.
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GreenRabbit
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Re: When to throw out Cakes [Re: Mushroom_J]
#21284916 - 02/16/15 06:52 PM (9 years, 3 months ago) |
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Perlite is just annoying stuff anyway. Monotubs > SGFC anyday. Only thing better is a greenhouse
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taGyo
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Ahh,
Smell makes sense. I thought you were specifically doing this to prevent contamination.
-------------------- Gyo's Better Grows TNF Q&A AMU Q&A Dominus fortunae meae sum
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