CO2 build up in ferm chamber

Systems, Gear, & DIY
1

This is my first time using my ferm chamber.  It’s a chest freezer with a temperature controller on it.  I know there has been a large amount of CO2 building up in there because when I open the top on occasion I can feel it in my nose.  Today when I took a gravity reading there was clear signs on CO2 in my beer.  I could tell from the amount of bubbles in it.  I think the build up is causing my beer to absorb some of it.

Do I need to figure out a way to vent the freezer?  Is there any adverse effect on my beer?

2

No, you don’t need to vent or account for it. Fermenting in a fridge or freezer doesn’t cause extra CO2 to build up in the beer - the CO2 still vents out of the airlock. What you’re seeing is CO2 from fermentation slowly coming out of solution. No worries.

3

Hold your breath when lifting out of chest freezers.

4

haha!  I know that!  I’m more concerned about the beer!