Ss Brewtech’s Biggest Baddest Holiday Giveaway Ever!

Home Brew Forums > Home Brewing Beer > Fermentation & Yeast > Blow-off tube + evaporation = oxidization???
Thread Tools
Old 01-09-2013, 02:59 PM   #1
Feedback Score: 0 reviews
Join Date: Jul 2011
Location: Montreal, Quebec
Posts: 469
Liked 14 Times on 14 Posts
Likes Given: 16

Default Blow-off tube + evaporation = oxidization???


I'm currently fermenting two batches of mead, which are in the primary with blowoff tubes. I was away from the house for a month. I did not anticipate the evaporation of water from the jars acting as my airlock, and came home to find the tubes hanging in air (the tips were no longer submerged).

I know that CO2 is heavier than O2, but I'm concerned that due to air circulation, oxygen may have entered the tubes and displaced CO2 from the headspace in my demijohns. I will rack and top-up the mead ASAP as a precaution, just wondering what the likelihood of this having occured is...

Thanks for the input,


Delaney is offline
Reply With Quote
Old 01-09-2013, 04:16 PM   #2
Feedback Score: 0 reviews
Join Date: Mar 2010
Location: Pittsburgh, PA
Posts: 1,255
Liked 36 Times on 32 Posts
Likes Given: 27


There could have been SOME O2 that made it's way up to tube and into the demijohns, but the amount would be so low I wouldn't remotely worry about it. I'm sure I've introduced more O2 than that to batches of beer by pulling the lids of buckets off for tests and I've never had a single issue.
A particular love for ancient, obsolete, or lesser-known style from both the US and abroad.
shanecb is offline
Reply With Quote

Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
Blow off tube Justin80 Beginners Beer Brewing Forum 4 06-11-2012 09:10 AM
Blow off tube..or blow off tube then airlock. BeerEngineer11 Fermentation & Yeast 10 06-06-2012 04:27 AM
On the other end of the blow-off tube Bartmannj Equipment/Sanitation 3 07-17-2010 11:59 AM
+1 for the blow off tube! Zamial Beginners Beer Brewing Forum 1 07-09-2010 01:14 PM
Blow off tube BrettMan General Beer Discussion 8 01-22-2007 06:55 AM

Forum Jump

Newest Threads