Pulp fermentation vessels

Pulp fermentation vessels

Post by benrot.. » Thu, 28 Dec 2000 06:08:57



Hi,
I want to conduct a pulp fermentation that will last the entire length
of fermentation (aiming for polymerisation of tannins).
I have experimented with this idea by macerating in sealed vessels
(such as plastic screw-top bottles). In these, any air can be squeezed
out and the cap can easily be punched down by tipping the bottle upside
down. Pressure is released once every couple of days to avoid
explosion, but never to the same level as atmospheric pressure. In
theory the wine would be protected under these circumstances by a CO2
blanket over the length of fermentation and Id have no acetification
problems. Unfortunately, in practise, I have.
I was wondering if anyone else had successfully managed this technique
(without fancy equipment) where they were able to punch the cap down
with ease whilst maintaining a good seal? If so, how?
Thanks,
Ben

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Pulp fermentation vessels

Post by Charlie » Fri, 29 Dec 2000 15:53:03


A colleague of mine did a carbonic maceration this year in a 5gal Cornelius
Keg.  He, however, followed that with a conventional yeast fermentation, I
believe.  But, perhaps, you could do what you're talking about in such a
container.  Just shake it up every now and then, and blow off excess CO2
with the relief valve?

Charlie

Quote:

> Hi,
> I want to conduct a pulp fermentation that will last the entire length
> of fermentation (aiming for polymerisation of tannins).
> I have experimented with this idea by macerating in sealed vessels
> (such as plastic screw-top bottles). In these, any air can be squeezed
> out and the cap can easily be punched down by tipping the bottle upside
> down. Pressure is released once every couple of days to avoid
> explosion, but never to the same level as atmospheric pressure. In
> theory the wine would be protected under these circumstances by a CO2
> blanket over the length of fermentation and I'd have no acetification
> problems. Unfortunately, in practise, I have.
> I was wondering if anyone else had successfully managed this technique
> (without fancy equipment) where they were able to punch the cap down
> with ease whilst maintaining a good seal? If so, how?
> Thanks,
> Ben

> Sent via Deja.com
> http://www.deja.com/


 
 
 

Pulp fermentation vessels

Post by benrot.. » Sat, 30 Dec 2000 05:39:50


Quote:
> A colleague of mine did a carbonic maceration this year in a 5gal
> Cornelius Keg.

Thanks - I'll have to search one out.

Ben

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