Has anyone fermented under pressure?

[admin]

Thinking of getting a 23L corny and a spunding valve and fermenting under pressure.

Anyone recommend anything other than a corny that I could use?

[Will_D]

Thinking of getting a 23L corny and a spunding valve and fermenting under pressure.

Anyone recommend anything other than a corny that I could use?

Err, Why??

[rukkus]

I think i've seen that in messrs alright.

[johnrm]

No, but I think its a great idea.
I had a chat with Peter in the Well about it.
Apparently it works well when you know your indredients and specially yeast.
You need to cap your brew at a particular time.
Makes sense to do it in a Corny, the only thing is you're fermenting in the Corny, you're probably going to push up a lot of yeast with the first pint or so.
You could crash cool your primary, rack to Corny and complete the ferment here.

[rukkus]

It seems to be called spunding http://byo.com/stories/projects-and-equipment/article/indices/20-build-it-yourself/400-build-your-own-spunding-valve-to-carbonate-in-the-keg

[Cambrinus]

Yes, I also talked with Peter about this. As John pointed out, last few points of fermentation is done in airtight conditions. Never heard of it being done in a corny though. Interesting.

[johnrm]

@Cambrinus, OT, Are you kegging or bottling? I'm kegging (Very few bottles)

[johnrm]

From that link...
Is that not a regular ball-lock valve?
(It looks like gas-in but with a gas-out collar)
Why 23L and not 19L?
Your brew is not going to care what vessel its in.

[rukkus]

Some of the un approved hdpe water containers are pressure tested up to about 30 psi. Might be worth fitting a valve to one of those for a laugh.

[DEMPSEY]

Why not borrow a 30 L keg :.

[Partridge9]

Would you not be as well to do primary and when its at about 1015 - transfer it to the cornie to finish the job and get your carbonation ?

At least you avoid having all that gunk at the bottom of your cornie.

FYI - I tried it in december - almost by acciden - I moved my Hefeweiss too early, but I have to say it all was a PITA as the yeast blocked the out tube.

You could always get one of those pressure barrels and brew in that - ie - the 'king keg'.

[johnrm]

You could always lie your corny on its side...