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pinehurst
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Why do I keep growing oats‽‽ 2
#27425970 - 08/13/21 05:33 AM (1 year, 5 months ago) |
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I need to take it back to basics for sure. I keep getting iats sprout up about the time of the first flush. And trich, lots of trich. And when I let it go for 2hrs, there's, what seems to be a dangerously low amount of water. Please tell me where I can improve.
-23qt Presto pressure cooker -7 or 10 wide mouth mason jars per run -metal rings and lids -2 1/4 holes per lid, both with microppose filter -jars 3/4 full -cover with foil - fill PC with water to just under neck of jars. It always seems to be just a small amount by 2hrs. -set on electric stove -set stove on high and wait for the two little things to pop up -let vent without weight for 15 minutes -put weight on and wait to get to 15psi -turn stove down to 3/4. Gauge stays at 16-17psi -keep there for 2hrs
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Smartattack
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Re: Why do I keep growing oats‽‽ [Re: pinehurst]
#27426017 - 08/13/21 06:03 AM (1 year, 5 months ago) |
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Wait, fill PC to below neck of jars and almost gone when done?
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pinehurst
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Re: Why do I keep growing oats‽‽ [Re: Smartattack]
#27426035 - 08/13/21 06:13 AM (1 year, 5 months ago) |
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Definitely between 3/4 the way up and kinda below the neck. They float around a little. And yeah maybe I'm just paranoid but it always seems like less than an inch when i take everything out at the end. And they definitely aren't fully sterilized.
I've checked the gasket and it looks and feels fine. The unit is about 1yr old.
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Captain_Cap
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Re: Why do I keep growing oats‽‽ [Re: pinehurst] 1
#27426090 - 08/13/21 06:47 AM (1 year, 5 months ago) |
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Quote:
pinehurst said: I need to take it back to basics for sure. I keep getting iats sprout up about the time of the first flush. And trich, lots of trich. And when I let it go for 2hrs, there's, what seems to be a dangerously low amount of water. Please tell me where I can improve.
-23qt Presto pressure cooker -7 or 10 wide mouth mason jars per run -metal rings and lids -2 1/4 holes per lid, both with microppose filter -jars 3/4 full -cover with foil - fill PC with water to just under neck of jars. It always seems to be just a small amount by 2hrs. -set on electric stove -set stove on high and wait for the two little things to pop up -let vent without weight for 15 minutes -put weight on and wait to get to 15psi -turn stove down to 3/4. Gauge stays at 16-17psi -keep there for 2hrs
To my knowledge, micropore tape isn’t a great filter for spawn, I’d like to say especially when it gets wet, but I’m no pro.
There are super cheap synthetic filter disks, or even synthetic filter stickers that will be a much better filter.
As for oats, I’ve just begun using oats and have made some jars that have been sitting post PC for 3 weeks. I just g2g noc’d them a couple days ago and they are taking to the WBS spawn quite well.
Are you getting trich in your jars or in your fruiting stage
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PBJ710
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Re: Why do I keep growing oats‽‽ [Re: pinehurst]
#27426092 - 08/13/21 06:49 AM (1 year, 5 months ago) |
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You should only use 3qts of water in the presto. The steam does the sterilizing, not the boiling water. It sounds like you are not turning down your stove enough - it's ok to not hear any leaking steam as long as it holds 15+psi. On mine, I turn it down to med-low after it gets up to pressure and it's almost as quiet as my 75x after that point. If it's making lots of noise and constantly rocking, you need to turn down the burner.
Micropore is not an adequate filter for grain jars. You need a hydrophobic SFD/polyfill or an unmodified plastic lid. Good pictures of the jars would help verify the filter is the source of the contams vs. the grain prep being the cause.
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wahhwahh
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Re: Why do I keep growing oats‽‽ [Re: Captain_Cap]
#27426093 - 08/13/21 06:52 AM (1 year, 5 months ago) |
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1) that's REALLY WEIRD that you're losing so much water and yet somehow keeping pressure. Do you seem a jet of steam escaping anywhere?
2) what are you using for substrate? it's possible you're sprouting something in that, also that it's the source of contamination. cooked oats shouldn't sprout, they're dead.
3) what does your spawn look like before you put it to bulk?
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shthd
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Re: Why do I keep growing oats‽‽ [Re: pinehurst] 1
#27426096 - 08/13/21 06:56 AM (1 year, 5 months ago) |
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You haven't mentioned the process you take before the oats go into the jar
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Smartattack
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Re: Why do I keep growing oats‽‽ [Re: shthd]
#27426126 - 08/13/21 07:25 AM (1 year, 5 months ago) |
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I use a quart and a half for 2+ hours and still have enough water left to do it again if I wanted to push it. Something is wrong here, other than just using way too much water. As has been said, the steam does the work so you dont want jars covered by water.
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The Fresh Prints
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Re: Why do I keep growing oats‽‽ [Re: Smartattack]
#27426137 - 08/13/21 07:38 AM (1 year, 5 months ago) |
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Quote:
Smartattack said: I use a quart and a half for 2+ hours and still have enough water left to do it again if I wanted to push it. Something is wrong here, other than just using way too much water. As has been said, the steam does the work so you dont want jars covered by water.
 1.5 quarts water for a 2 hour cycle
Pretty sure 95% of the water I lose is in the venting stage.
Are you putting the weight on, OP?
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Paracosm


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Re: Why do I keep growing oats‽‽ [Re: shthd]
#27426140 - 08/13/21 07:40 AM (1 year, 5 months ago) |
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Quote:
shthd said: You haven't mentioned the process you take before the oats go into the jar
I agree with the other posters above, and maybe having more information on your step-by-step can help someone pinpoint the problem.
I've got a 23qt Presto. You're definitely using too much water.
-------------------- My Grow Journal
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Lostkeys
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Re: Why do I keep growing oats‽‽ [Re: Paracosm] 1
#27426159 - 08/13/21 07:57 AM (1 year, 5 months ago) |
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shthd
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Re: Why do I keep growing oats‽‽ [Re: pinehurst]
#27426161 - 08/13/21 08:00 AM (1 year, 5 months ago) |
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Quote:
pinehurst said: I've checked the gasket and it looks and feels fine. The unit is about 1yr old.
Is everything as tight as it should be? No leaks?

I was using my canner once and noticed some water droplets spurting from the air vent and thought nothing of it. After allowing it to cool overnight I found the canner was mostly dry inside (starting with 3 qts water). Turns out the air vent wasn't threaded on tight.
Is your pressure regulator modified with extra weight? Mine won't jiggle until it's past 20 psi and into the CAUTION region of the gauge
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Lostkeys
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Re: Why do I keep growing oats‽‽ [Re: shthd]
#27426184 - 08/13/21 08:40 AM (1 year, 5 months ago) |
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Quote:
shthd said: Is your pressure regulator modified with extra weight? Mine won't jiggle until it's past 20 psi and into the CAUTION region of the gauge
I have mine set up this way also
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highway dick boss
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Re: Why do I keep growing oats‽‽ [Re: Lostkeys]
#27426237 - 08/13/21 09:59 AM (1 year, 5 months ago) |
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If it's at 17 psi with an unmodified rocker then the heat is definitely too high. I have an electric stove and 4 out of 10 keeps it perfect for me. As for the oats sprouting, that's absolutely bizarre. You're hydrating them, right?
Edited by highway dick boss (08/13/21 10:00 AM)
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jomanda1990
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Be very careful if you are losing so much water. You should have like almost the same amount of water once you finish if you follow the instructions from the manual. The rocker on the PC should not rock all the time once you hit 15+ psi. You must lower your stove or burner to try to "sweetspot" it so that the thermal losses in the PC are equal to the heat provided to it; this balance should cause pressure to stay fixed right at 15 psi, meaning that the rocker would not need to move to release extra pressure. Don't go OCD on this though, a bit of rocking here and there is perfectly fine.
As for the oats growing... that's REALLY weird. Did you hydrate them? They should never survive a proper PC cycle, but without water in them the embryo in the seeds might not be exposed to that much heat.
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Edited by jomanda1990 (08/13/21 10:18 AM)
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pinehurst
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Re: Why do I keep growing oats‽‽ [Re: jomanda1990]
#27426401 - 08/13/21 03:41 PM (1 year, 5 months ago) |
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OP here, as for oat prep it goes like this.
-1900g oats -water to fill 1/2 of PC, boiled in PC, no lid -rolling boil 30 minutes until they smush easy -strain, dry, pack
As for the water issue, I might be over exaggerating. I'll run a batch tonight and report back.
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pinehurst
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Re: Why do I keep growing oats‽‽ [Re: shthd]
#27426403 - 08/13/21 03:43 PM (1 year, 5 months ago) |
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Quote:
shthd said:
Quote:
pinehurst said: I've checked the gasket and it looks and feels fine. The unit is about 1yr old.
Is everything as tight as it should be? No leaks?

I was using my canner once and noticed some water droplets spurting from the air vent and thought nothing of it. After allowing it to cool overnight I found the canner was mostly dry inside (starting with 3 qts water). Turns out the air vent wasn't threaded on tight.
Is your pressure regulator modified with extra weight? Mine won't jiggle until it's past 20 psi and into the CAUTION region of the gauge
I'll check this tonight. Great info
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Stipe-n Cap


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Re: Why do I keep growing oats‽‽ [Re: pinehurst]
#27426412 - 08/13/21 03:55 PM (1 year, 5 months ago) |
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High energy steam sterilizes your grains, don't submerge your bottles in water.
People do this with agar though I'm not sure why, they claim it's to prevent boil over. I've never once had agar boil over. I'm sure it's as much of a myth as caramelization.
I use the recommended 3 quarts of water for my presto, this brings the water to just a hair over my trivet with spacers underneath and run for 2 hours and vent for 15 with plenty of water remaining.
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QM33
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Re: Why do I keep growing oats‽‽ [Re: Stipe-n Cap]
#27426417 - 08/13/21 04:04 PM (1 year, 5 months ago) |
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If water boils as hot as steam, is there any reas9n to think that the steam is axtually hotter under pressure than the boiling water?
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Stipe-n Cap


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Re: Why do I keep growing oats‽‽ [Re: QM33]
#27426424 - 08/13/21 04:13 PM (1 year, 5 months ago) |
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The problem isn't temperature, submerging your jars is going to overcook your grains. Have you ever added a bit too much water and watched what it did to the bottom of your jars?
Adding that much water is just less efficient/unnecessary. Steam should still penetrate the inside of the jars where it matters.
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