Blow Off Tube (Stainless) - 3/8 in.

Blow Off Tube (Stainless) - 3/8 in.

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Tired of clogged airlocks from your intense and vigorous fermentations? Simply place one end in your stopper instead of your airlock and the other end into a bucket of water or sanitizer and worry no more. Made from stainless steel, making it durable and easy to clean.


  • Stainless steel
  • 3/8 in inner diameter
  • 18 in Tall x 7 in Wide
Item # FE520
Shipping Eligible for Free Shipping Program
Availability California - In Stock
Pennsylvania - In Stock
Weight 0.06 LBS
Community Q&A

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Browse 3 questions Browse 3 questions and 20 answers
Why did you choose this?
MoreFlavor Store
I need it
Frank L on Jan 5, 2022
Need it.
Joel C F on Dec 8, 2021
I need it
Frank L on Jan 5, 2022
Much easier to use that plastic blow off tubes
Steve M on Dec 27, 2021
Need it.
Joel C F on Dec 8, 2021
Short height when exiting the carboy
Alan M on Sep 25, 2021
I got tired of cleaning Krauzen off the ceiling.
Jeff M on Mar 29, 2021
Looks interesting. Will use to rack into fermenter and then use as blow off for a closed fill and secure blow off
Alexander B on Jan 20, 2021
Its was recommended by a very reliable source.
dale w on Jan 7, 2021
handles wider fermenters than others
Bryon D on Dec 2, 2020
Replacement for 1/2" blow off tube which is too big.
John H on Jul 15, 2020
Recommend by a friend
Valued C on May 12, 2020
The measurements match up with my FastFerment fermenters, my last brew filled the airlocks with foam. Flexible tubing is a pain to work with and clean.
Jason Schafer on Mar 19, 2019
might need it
Fred L on Jan 1, 2019
blow off
John C on Sep 10, 2018
I've had accidents with airlocks so figured this might be a good idea.
Bernard W on Aug 8, 2018
trying a new product to make it easier and cleaner for blowoffs
kevin t on Apr 19, 2018
mark gray on Mar 24, 2018
Much easier to use that plastic blow off tubes
Steve M on Dec 27, 2021
Short height when exiting the carboy
Alan M on Sep 25, 2021
What size stainless blow off tube is recommended for use with the thermowell/hood (FE625)?
Sean Kinnas on Apr 4, 2018
BEST ANSWER: Item FE625 is recommended to be used with a standard airlock or 1/2 inch blow off tubing. So something around that size.
1/2 in. OD Stainless Steel Blowoff Cane
1/2 in. OD Stainless Steel Blowoff Cane
I just bought 2 stainless steel blow off tubes. I wonder how these have to be cleaned after use. Any recommendation?
BEST ANSWER: I have used these often and clean them after each use. First I rinse by flushing with hot water, then I wash using Brewery Wash using Brush (CE45 Beer Line Cleaning Brush - 1/4 in. x 36 in.) Then power flush, and then spray inside with Star San an let dry.

5.0 / 5.0
5 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 5 out of 5
Better than an air lock in many cases.
My airlock clogged and blew up again. I didn’t even brew a big beer. My solution was this item. Plop the short end into your bung and the long end into a pitcher filled halfway with sanitizer. Easy peasy. Compact yet enough room to wrap insulation around my glass carboy. I don’t even need to use the keg lube to seal it.
December 14, 2020
1 year ago
Rated 5 out of 5
Makes life easier
This has made life so much easier when trying to attach a blow off tube. So much so I bought an extra one on my next order
September 9, 2019
over 2 years ago
Rated 5 out of 5
Perfect with a minor modification
My last IPA filled the airlocks with foam so I ordered four of these. With a normal grommet the 3/8 steel tube doesn't make a tight fit. I added 1 3/4" of 7/16 clear blow off tube to the top of the steel tube and that did the trick. It will still be much easier to clean than using all flexible blowoff tubing. I'll use these on my next double batch of belgian wit...
User submitted image
Added Mar 24, 2019
March 24, 2019
over 2 years ago
Response from MoreFlavor
Thank you so much for your feedback. We really appreciate the honesty and value great feedback like this as it helps us improve our products. Cheers!
March 25, 2019
Tyler W Staff
Rated 5 out of 5
A bubble making beer saving machine
Got this to help with some massive foaming from D-IPA, it works amazing and the amount of bubbles and sludge it produces almost makes it own beer in the bottle I use for overflow.
October 28, 2018
over 3 years ago
Rated 5 out of 5
Much better than plastic blow off tubes
I started to use this after adding Servomyces to my wort which resulted in a lot more yeast activity that clogged up my airlocks. Stainless steel is easy to clean and much better than blow of tubes.
March 2, 2018
over 4 years ago