Ferm cap | HomeBrewTalk.com - Beer, Wine, Mead, & Cider Brewing Discussion Community.

Homebrew Talk

Help Support Homebrew Talk by donating:

  1. Dismiss Notice
  2. We have a new forum and it needs your help! Homebrewing Deals is a forum to post whatever deals and specials you find that other homebrewers might value! Includes coupon layering, Craigslist finds, eBay finds, Amazon specials, etc.
    Dismiss Notice

Ferm cap

Discussion in 'Fermentation & Yeast' started by Gustatorian, Oct 12, 2015.

 

  1. #1
    Gustatorian

    Well-Known Member

    Posted Oct 12, 2015
    Experiences? Any alterations in flavor/head retention? Techniques (did you add it the boil, fermentor, or both)?

    Just want some personal feedback before I use this stuff.

    THANKS!
     
  2. #2
    MaxStout

    Well-Known Member  

    Posted Oct 12, 2015
    When used at the recommended dosage, it should not alter the flavor, nor should it affect head-retention.

    I would add it to the kettle as the wort is coming to a boil, BEFORE the risk of boil over. Works great, especially if there's little headroom in the kettle.

    I have never heard of anyone adding it to the fermentor, and don't know if it would work in that application anyway. Use a blowoff tube instead.
     
  3. #3
    Doed

    Belching Dog Brewery

    Posted Oct 12, 2015
    I use it in every batch. 2 drops per gallon. Don't notice any problems. I have also used 1 drop in a starter to keep it from boiling out of the flask on the stove and it worked fine there as well.

    Edit: Sorry missed the fermenter part...never used it there. A blow off tube would be a better choice IMO.
     
  4. #4
    Gavin C

    Well-Known Member  

    Posted Oct 12, 2015
    In the secondary-v-no secondary exBeeriment @Brulosopher uses some to stop a foam over.

    Quoting from his website.

    _______________________________

    After about 18 hours of fermentation, I woke up to a slight mess.
    [​IMG]

    The other carboy was just about to do the same when I added a couple drops of Fermcap-S, which stopped the foam in its tracks.


    [​IMG]
    ________________________________________________

    End Quote.

    ________________________________________________

    It is an entirely safe product.
     
    Gustatorian and Ungoliant like this.
  5. #5
    beernutz

    Well-Known Member

    Posted Oct 12, 2015
    Last edited by a moderator: Oct 23, 2018
  6. #6
    Gavin C

    Well-Known Member  

    Posted Oct 12, 2015
    Last edited by a moderator: Oct 23, 2018
  7. #7
    kh54s10

    Supporting Member  

    Posted Oct 12, 2015
    When I first started brewing a little over 4 years ago, every post about boil overs AND blow offs suggested Fermcap-s. I used to use it but now just watch for the boil over and use a blow off tube.

    If used at the proper concentration it does work and has no detectable effect on the beer.

    There was also a lot of discussion a couple of years ago about the FDA (I think) recommending that it is filtered out of the beer. I believe it is silicone. Most say it is of no medical concern for various reasons.
     
  8. #8
    Gavin C

    Well-Known Member  

    Posted Oct 13, 2015
    This filtering thing is not correct. It constantly crops up in discussions about Fermcap. It is Not required by the FDA that it be filtered.

    This is one of these chestnuts of bad information that just won't go away.

    No FDA regulation requires it to be filtered.

    I use it in starters. Indispensable IMO if making them in a flask.
     
    KeninMN likes this.
  9. #9
    MaxStout

    Well-Known Member  

    Posted Oct 13, 2015
    I learn something new every day. I had never seen Fermcap used in fermentation until now. Interesting exBeeriment.

    As for kettle additions, I don't think I've ever had to use the full dosage of 2 drops/gallon. In a typical 5 gal batch (~7 gal in BK), 3 or 4 drops total have always been quite sufficient.
     
  10. #10
    Gavin C

    Well-Known Member  

    Posted Oct 13, 2015
    Neither had I till I read that exBeeriment recently.
     
  11. #11
    Doed

    Belching Dog Brewery

    Posted Oct 13, 2015
    I'll cut my usage back and see what happens.
     
  12. #12
    E93Bausch

    Member

    Posted Oct 13, 2015
    I love the stuff. I use a couple drops when boiling my starter wort in an Erlenmeyer flask to prevent boil overs.

    I add a few drops to my boil kettle anytime it is full to within a few inches of the rim, also to prevent boil overs.

    I also add it to my carboys before fermentation starts to prevent my airlocks from clogging and sticky beer goo going all over. This takes a little more than an eye dropper full.

    I have never noticed any change in my beer. I wonder if I added it at kegging, would it stop all that foam I get on the first pour. :D
     
  13. #13
    Gustatorian

    Well-Known Member

    Posted Oct 13, 2015
    So what is the dosage you would use for a 5 gallon fermentation to prevent blow off? 2 drops/gallon?
     
  14. #14
    JoeSpartaNJ

    Well-Known Member

    Posted Oct 14, 2015
    I only use it preboil. Helps with boil over and keeps krausen to a minimum. I haven't used a blow off tube in 2 years with my bucket.

    I do not measure it either, just squirt it into the kettle.
     
  15. #15
    Patrick87

    Well-Known Member

    Posted Oct 14, 2015
    Fermcap works great. I usually use 1 drop per gallon. It was especially handy when I used to boil 6.5 gallons of wort in my 7.5 gallon pot. Fermcap = zero boil overs.
     
  16. #16
    mm1473

    Well-Known Member

    Posted Oct 14, 2015
    I used it for the first time on my last batch and I love it. No more hovering over the kettle with my stupid spray bottle.

    Also--I am a kettle dumper and just dump my whole kettle into the fermenter after cooling. I swear the krausen on this batch was 1/3 of what I usually get. No scientific basis on that comparison though--just a general observation.
     
  17. #17
    KeninMN

    Well-Known Member

    Posted Oct 15, 2015
    The so-called Food Babe was the last one to make a big stink about it. I'm so sick of sensationalist junk "science"... :mad:
     
  18. #18
    MaxStout

    Well-Known Member  

    Posted Oct 15, 2015
    There was this sensationalist piece last year, concerning Isinglass in Guinness.

    Fish bladders in my beer, ya say?

    [​IMG]

    Cripes, just put a note on the label so no one will get hurt: not vegan/vegetarian. More for the rest of us to drink.
     
  19. #19
    ghohn

    Well-Known Member

    Posted Oct 18, 2015
    Fermcap-S is a must when keg fermenting.
     
  20. #20
    Calder

    Well-Known Member

    Posted Oct 19, 2015
    Use it all the time.

    - Use a drop in starter wort to prevent boil-over.

    - Use it in the kettle at about 1.5 drops per gallon to prevent boil-over. Never have a problem.

    - Use it in the fermenter, again roughly 1.5 drops per gallon. I still use a blow-off as I usually have less than a gallon headspace. Some Belgian yeasts still go crazy even when using it, so even iff you use it in the fermenter, don't assume everything will be safe from a blow-off.

    Supposedly (I have no evidence, but some places advertise this), it improveshead retention and improves hop utilization.

    Given the choice, I wouldn't brew without it.
     
    Gustatorian likes this.
Draft saved Draft deleted

Share This Page

Group Builder