Circular milky-like patterns on top of mead

  • PATRONS: Did you know we've a chat function for you now? Look to the bottom of the screen, you can chat, set up rooms, talk to each other individually or in groups! Click 'Chat' at the right side of the chat window to open the chat up.
  • Love Gotmead and want to see it grow? Then consider supporting the site and becoming a Patron! If you're logged in, click on your username to the right of the menu to see how as little as $30/year can get you access to the patron areas and the patron Facebook group and to support Gotmead!
  • We now have a Patron-exclusive Facebook group! Patrons my join at The Gotmead Patron Group. You MUST answer the questions, providing your Patron membership, when you request to join so I can verify your Patron membership. If the questions aren't answered, the request will be turned down.
Huh, I think that's what I describe as the "flaky" layer I sometimes have at the surface of a carboy. Is there a particular smell associated with something like that? Mine's usually odourless, doesn't seem to affect the taste that I can tell, and a campden tablet usually gets rid of it...
 
Huh, I think that's what I describe as the "flaky" layer I sometimes have at the surface of a carboy. Is there a particular smell associated with something like that? Mine's usually odourless, doesn't seem to affect the taste that I can tell, and a campden tablet usually gets rid of it...

First, yes I am talking about macalel's pictures, not yours! ;)

And Brett shares this pellicle trait with several other "wild" yeasts. Some of them are so closely related to our favorite strains of s. cerevisiae that they contribute nothing strange to aroma or taste, but many will instill a certain "farmyard" aspect to the brew. Brettanomyces is well known for aromatic elements that remind one of a horse stall that has only been recently mucked out or a smell reminiscent of something between Limburger cheese and baby vomit, and it tends to throw noticeable amounts of VA (acetic acid). These elements, in low enough concentrations, can add complexity to a beer -- but in higher concentrations, or when found in many meads at any concentration, they simply add sour flavors and/or smells.
 
Yeah, I found that on the top of my apple/pear/plum cider *after* about 2 weeks in the secondary (ie finished fermentation). It was definitely not deliberate. I ended up racking from below this layer into another container, and it hasn't come back.
 
So I don't think that yours is infected. Maybe it's just some sort of "separation" going on? Or your yeast has mutated slightly?



OT: can we not edit our posts after an hour or two from posting them?