By - DirtyHarry133
Maybe I’m stupid but wouldn’t that change the pressure the cooker is getting to if you add more weight?
It does but if you turn down the heat just a notch it doesn't go over 15psi and it keeps it quiet
Fair. Not sure why you got a downboat for that comment.
My issue: my PC doesn’t have a gauge. I don’t think I would feel safe doing it without a gauge due to the weight being calibrated specifically for the PSI desired. It’s one of the biggest annoyances of mycology by far for me too, listening to that fucking venting for two hours…
Yeah i probably wouldn't do it without a gauge either when it comes to agar/lc. I literally drew a small circle on the stove to know where to stop the knob.
On the other hand if you are patient you can put a small coin and see how low you can turn the knob while it is still rattling but less than it normally does and that would probably be 15.5 psi.
But with grains you can just add a coin, turn the knob down a bit and leave it 20 minutes more than usual and that should do the trick safely
Don’t do this, very dangerous.
Edit: could be
How is it very dangerous?
Read the manual.
Not sure what you're getting at. You do know that there are different weighted regulators for sale too right? Pressure cookers don't just go to 15psi and then explode if they reach 16
Yeah, it specifically states not to do exactly what you are doing in this video. To each their own brother.
Also says that you shouldn't use pressure cookers for mushroom cultivation.
Preventing the rocker from rocking can cause pressure to start building.
You might do this a hundred times with no issues. You might do it one more time and have a bomb go off on your stove.
But it's your life and your stuff.
Not sure why you're getting defensive with people just trying to help.
The manuals specifically warn against doing what you're doing.
nothing is stopping the rocker from rocking, or from being pushed open by overpressure.
I guess we should calculate how much pressure might be added by the “new” weight from the coin.
It should be something (equal or less) like: Pressure_added=(weight_of__the_coin)/(hole_area)
Edit: you could be there watching and do some experimenting: try driving up the heat as you are there watching. Does it start rocking hard again somewhere slightly upwards of 15psi? Then not so dangerous.
If you don’t find it to rock with good strenght below 18psi, then you should probably get some lighter coin or simply stop doing reckless stupid dangerous stuff.
To each their own. Be responsible and safe, guys. Have a good one.
You're right, depending on the weight of the coin it could build too much pressure that's why i stated it's a 4g coin. I'm using a 23q presto for refference.
If i keep the fire at the same intensity as i would without the coin it starts rocking hard at 16.5psi so the 4g adds exactly 1.5 more.
Sry to everybody if i got too defensive, i should rly stop using facebook and getting engaged in stupid arguments over there while also posting here.
Nobody should be doing this coin thing if they don't know theor pc well enough.
In regards to general safety IF you know your pc well, mushboy and bod @ shroomery have been doong this for years and i'm sure they've used their pc's more then most ppl here will ever do (me included)
I agree, bro
What does the manual say about part: 82117 over pressure plug?
The rocker holds the pressure and the over pressure plug is what prevents your PC going over pressure. If you plugged the fitting the rocker sits on, it still won't explode.
The vessel could go over its design pressure because its only safety mechanism has been temepered with. Possibly resulting in rupture and a steam explosion. Not pretty.
Well it rly depends on the cooker. Prestos go to 20psi. Even after that it has the little rubber thing that will either pop because of too much pressure and release it all or melt if the water runs out and the metal becomes too hot.
I get all this paranoia with the cookers comes from the old days when they were actually dangerous but now there is way more info out there and they have different and better safety mechanisms
The important disclaimer for this is you need to know your PC well enough to make sure it's actually at 15PSI. The gauges are meant for reference only and don't display an actual accurate readings. For example with my 2 prestos I've had 1 doesn't rock until gauge is close to 16.5 and the other rocks at just under 15. Otherwise a gauge reading 15 might actually be PC'ing at 14PSI or lower which would not be good.
I doubt 1 psi would make much of a difference if any. The elevation of where you live would have more of an effect. If it worries you, leave it on an extra couple of minutes. I've PC'd things a few times in some electric PC's I have, they're like 11psi just need to look up how long to PC for.
I thought they called it a rocker... hmmmmm🤔