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Brews & Views Bulletin Board Service * Brews and Views Archive 2011 * Archive through December 10, 2011 * Foaming WL vial < Previous Next >

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Ken Anderson
Senior Member
Username: Ken75

Post Number: 1915
Registered: 11-2002
Posted From: 76.189.235.103
Posted on Monday, September 19, 2011 - 06:50 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

I assume everyone shakes a WL vial of yeast before opening. I did, and it foamed up and made somewhat of a mess, which I don't remember ever happening before. I don't think I lost much though. But I'm getting paranoid because I just tasted my starter and my first reaction was sour, though it smells ok. High seventies starter fermentation, no hops. Am I making 10 gallons of nastiness?
 

Bill Pierce
Moderator
Username: Billpierce

Post Number: 13220
Registered: 01-2002
Posted From: 24.150.49.181
Posted on Monday, September 19, 2011 - 07:26 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

I'm careful when I open White Labs vials. I've had a couple foam over on me in the past. I now twist the cap v-e-r-y slowly.

How sour did the starter liquid taste? What strain was it?
 

Ken Anderson
Senior Member
Username: Ken75

Post Number: 1917
Registered: 11-2002
Posted From: 76.189.235.103
Posted on Monday, September 19, 2011 - 08:50 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

833 Bock. Sour was my first impression. I did take a second sip though, so it wasn't that disgusting. Get this: I used frozen wort from four years ago to make the starter. Maybe it had gotten funky in the freezer? I wasn't worried about its age, as I boiled it, which should have killed off anything. Also, I steamed my sterile filter that I use with an aquarium pump. But I'm not sure if I have the kind that you can sterilize like that.

With my rig I can hold the wort in sterile conditions until I got fresh yeast, if needed. It would require the "no chill" method, if that beast still exists.

Thanks, Bill.
 

Bill Pierce
Moderator
Username: Billpierce

Post Number: 13222
Registered: 01-2002
Posted From: 24.150.49.181
Posted on Monday, September 19, 2011 - 09:16 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

I'm thinking that after four years in the freezer your starter wort might have picked up some undesirable odors/flavors. However, if you boiled it, it should at least be sanitary. I would be sure to crash cool the starter and pitch as little of the liquid as possible.
 

Ken Anderson
Senior Member
Username: Ken75

Post Number: 1918
Registered: 11-2002
Posted From: 76.189.235.103
Posted on Monday, September 19, 2011 - 11:02 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

I like that advice and will take it. I was thinking along the same lines. We'll just see how she turns out. Most everything else is looking good. Gravities, volumes and such.

Thanks, Bill!
 

Vance Barnes
Senior Member
Username: Vancebarnes

Post Number: 4208
Registered: 03-2003
Posted From: 76.122.104.54
Posted on Wednesday, September 21, 2011 - 01:04 am:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

Some strains seem to gush a lot more than others. Seems like they ferment a little more in the vial. I've learned to open them over the sink slowly too.
 

Dave Witt
Senior Member
Username: Davew

Post Number: 1606
Registered: 03-2003
Posted From: 24.7.227.140
Posted on Thursday, September 22, 2011 - 10:36 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

I've had this happen to me and I don't use White Labs too often. It is akin to a partially swollen Wyeast smack pack.
 

Greg Brewer
Intermediate Member
Username: Greg_r

Post Number: 317
Registered: 03-2005
Posted From: 64.124.83.190
Posted on Friday, September 23, 2011 - 06:51 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

I had the same thing happen to me last week for a starter of 013 London Ale. I don't think there was a problem with the yeast, just excess CO2, but the foaming and dripping worried me. Haven't tasted it yet but the starter smelled and behaved typically. Next time I'll be more careful opening it.
 

Bierview
Senior Member
Username: Bierview

Post Number: 1045
Registered: 03-2003
Posted From: 68.197.192.230
Posted on Saturday, September 24, 2011 - 01:43 am:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

Bill,
I was surprised to hear that 4 year old frozen wort could pick up any off flavors. I never keep frozen wort that long for my starters but I will admit to 6-12 months. I've got some dregs from La Fin Du Monde gushing at the moment.
 

Bill Pierce
Moderator
Username: Billpierce

Post Number: 13240
Registered: 01-2002
Posted From: 24.150.49.181
Posted on Saturday, September 24, 2011 - 04:03 am:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

I think anything stored in the freezer might pick up off-aromas after four years. You wouldn't want to eat something stored that long, but as I said, if it was boiled at least it was sanitary.
 

Tim C.
Member
Username: Timc

Post Number: 235
Registered: 03-2003
Posted From: 67.149.191.77
Posted on Saturday, September 24, 2011 - 12:09 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

It is possible the vial already had contamination prior to opening. If you get gushing bottles, the first thought is contamination.
 

Bill Pierce
Moderator
Username: Billpierce

Post Number: 13242
Registered: 01-2002
Posted From: 24.150.49.181
Posted on Saturday, September 24, 2011 - 12:48 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

White Labs' quality control is very high. It's extremely unlikely the yeast is contaminated.