Ok new folks, what did I do wrong with the small 2 carboys?
learning lesson from older brew guy
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I could guess, but I'll hold my tongue for now. I'm guessing there's another picture that you'll post soon enough 
OP
OP
I could guess, but I'll hold my tongue for now. I'm guessing there's another picture that you'll post soon enough
LOL, no just did a bit of cussing as I cleaned up
Pics!!!
Using both blowoff tubing and airlocks?
It's my bet also. But why is it wrong?
Brownalemikie
Well-Known Member
No need for air locks when using blow-off tubes, but those orange caps work great for siphoning.
With the hint you gave, I'll guess that you filled them too full for a primary fermentation and that the tubing was inserted into the blowoff too far which caused the krausen to go out the airlock as it was the path of least resistance.
jack13
Well-Known Member
I'm wondering why you took a 'before' picture in the first place (since you would ostensibly not know there would be an 'after' one).
MMmmmmmMMMm... I wonder (hey no science background here..i'm a lawyer) if the use of both the airlock on top and the blow off below would cause some kind of pressure instability.
Hence causing a siphon effect????
We need a Phd here ASAP.
Edit: just subscribed the topic coz i know it's gonna be fun fun fun fun.
Hence causing a siphon effect????
We need a Phd here ASAP.
Edit: just subscribed the topic coz i know it's gonna be fun fun fun fun.
RPh_Guy
Bringing Sour Back
You filled them with porter/stout instead of something good??
But seriously I'm not familiar with those orange pieces, but the airlock and blowoff together look suspicious. Also the airlock on the right looks like it is empty.
RPh_Guy
Bringing Sour Back
No, there's no way with that setup.
So, other than clogging both the airlock and the blow off ( a bit of an accident), is there anything that in principle is wrong with that setup?
RPh_Guy
Bringing Sour Back
Probably his blowoff was completely ineffective for krausen control because the tubing goes higher than the airlock. Too much krausen would clog the airlock but never cause it to blow off because of the alternate pressure release.
Side note: I used to have problems with krausen blowoff until I switch to using a water bath to help with temperature control. I have 4 different yeasts going right now and didn't have issues with any of them. One I didn't even bother putting a blowoff tube on.
No, there's nothing else wrong in principle. A siphon effect would never occur because the tube would never be filled with liquid; it would need to be full of liquid with both ends submerged.
madscientist451
Well-Known Member
Didn't brew a Bud Light clone?
Sorry, I'm a sarcastic @__e....
But those orange things never worked for me, seems like I couldn't get them to seal properly.
Not enough headspace has already been guessed, but it also looks like no temperature control is being used and that's might not be a problem if its chilly in there....
Sorry, I'm a sarcastic @__e....
But those orange things never worked for me, seems like I couldn't get them to seal properly.
Not enough headspace has already been guessed, but it also looks like no temperature control is being used and that's might not be a problem if its chilly in there....
You don't need a seal for primary unless you just have to see bubbles. The airlock is only a way to let out the excess CO2 without letting the fruit flies in.
SlitheryDee
General Manager
The blowoff went through the blowoff tube AND the airlock.
AntonioMartins
Well-Known Member
Nothing.
Temperature control is missing, but we can not say it's "wrong".
Blow off and airlock together on this configuration may not work as expected, but it's not "wrong" also.
Temperature control is missing, but we can not say it's "wrong".
Blow off and airlock together on this configuration may not work as expected, but it's not "wrong" also.
OP
OP
Winner, Winner- I knew there would be blow out but thought it would go out tube. Think the tube was too tall which let it go out airlock
OP
OP
I'm wondering why you took a 'before' picture in the first place (since you would ostensibly not know there would be an 'after' one).
We were doing a learn to brew day and took a photo for the folks that were learning. This was 2 days later.
OP
OP
Wort was chilled overnight from brew day to 40 deg. in chest freezer. Took out next day, pitched yeast. This is in my basement so room temp is 62-68 most of the time. 1st day after pitch, everything was bubbling nice and behaving itself. Next day I checked it at 6 and it had bubbled out the airlocks and none out tube. I think the height of tube vs. airlock, plus the pressure of the liquid in the blow off bottle, caused the blow out the airlock.
No real damage, just some clean up. First time I have used a tube. Mostly do 5.5 gal in a 6-7 gal fermentor. But guys learning wanted to split one batch and add oak/ bourbon to 3 gal and vanilla to the other. So the teacher got the lesson, lol
No real damage, just some clean up. First time I have used a tube. Mostly do 5.5 gal in a 6-7 gal fermentor. But guys learning wanted to split one batch and add oak/ bourbon to 3 gal and vanilla to the other. So the teacher got the lesson, lol
It's a matter of pressure. Which takes less pressure to let the CO2 out? Well, the airlock has a little bit of liquid while the tube is into a big container but that doesn't matter. It's the height of the liquid above where the CO2 is pushing. If your blow off tube had been inserted in the big container until it was just a quarter inch below the liquid, that is where the least back pressure would have been and that is where it would have vented.
Lefou
Danged rascally furt
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The airlock has less resistance to the over pressure from vented CO2. The gas has to displace water and there is less volume in the airlock, so most of the gas and krausen mess will vent that direction.
Interesting lesson.
Interesting lesson.
It will go through the airlock before it goes through the tubes
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