In order to start doing simple closed transfers with a 3-gallon Fermonster with a spigot I just added a ball lock gas post to one of the sealed Fermonster lids. I'll use a quick disconnect and a blowoff tube during fermentation and I'm clear on how to do the transfer to the keg.
What I'm wondering now is how to handle cold crashing.
I'm assuming that if I just remove the blowoff tube, leaving the fermenter airtight, the drop in temperature and internal pressure will suck the walls of the fermenter in and potentially damage the fermenter. And of course leaving the blowoff tube on doesn't seem to solve the problem of air and sanitizer getting sucked in.
My first thought was to remove the blowoff tube and apply 1-2 PSI of CO2 during cold crash (according to the company that makes the Fermonster it's OK up to 5 PSI), but I'd love to hear techniques people have used or general ideas on this.
Thanks!
What I'm wondering now is how to handle cold crashing.
I'm assuming that if I just remove the blowoff tube, leaving the fermenter airtight, the drop in temperature and internal pressure will suck the walls of the fermenter in and potentially damage the fermenter. And of course leaving the blowoff tube on doesn't seem to solve the problem of air and sanitizer getting sucked in.
My first thought was to remove the blowoff tube and apply 1-2 PSI of CO2 during cold crash (according to the company that makes the Fermonster it's OK up to 5 PSI), but I'd love to hear techniques people have used or general ideas on this.
Thanks!