I always thought my LHBS was full of it when they told me to discard the bottle after a year or so. Anyways, I hadn't brewed since last April and decided to do a quick extract batch on the stove top today. Got my boil going, put in the Fermcap-S and took the trash out. In the two minutes it took for me to run out and run back in I had a hellacious boil over.
It didn't seem too bad until I pulled out the burners and found this mess underneath. All told, I ended up losing between 1 and 2 quarts of my boil volume.
Moral of the story... never leave your boil unattended, even if you are using Fermcap-S. I'll chalk this one up as a learning experience and advise any other Fermcap users to make sure they know how old theirs is before they brew.
![2013-01-27132121_zps1d5e9746.jpg](https://proxy.imagearchive.com/154/15456cff2ed2a533b88837c995b4f0e0.jpg)
It didn't seem too bad until I pulled out the burners and found this mess underneath. All told, I ended up losing between 1 and 2 quarts of my boil volume.
![2013-01-27133025_zps4e4e86da.jpg](https://proxy.imagearchive.com/971/971d8138d4607ea5022bc9b237155c66.jpg)
Moral of the story... never leave your boil unattended, even if you are using Fermcap-S. I'll chalk this one up as a learning experience and advise any other Fermcap users to make sure they know how old theirs is before they brew.