Old Yeast Slurry

[Over The Cliff Brewing]

I have a slurry of S-33 from last November. It smells and looks ok. Should I toss it or try using it. I was thinking of making a small amount of wort (1500ml) or using the same amount of apple juice to test the viability. What do you think?

 

[Herm brews]

I think that would be a fine idea, one that I am interested in learning your results.

 

[soccerdad]

I bet it's still good

 

[Minbari]

yeast losses potency over time, but if you are going to make a starter anyway, you may just have to do multiple stages.

it greatly depends on how the slurry was stored.

 

[Hawkbox]

I have a slurry of S-33 from last November. It smells and looks ok. Should I toss it or try using it. I was thinking of making a small amount of wort (1500ml) or using the same amount of apple juice to test the viability. What do you think?

Try it. I've rebuilt slurry older than that.

 

[Mark Farrall]

I've got a blend of saison and brett yeast that I use every six months. The first few batches I'd just pitch the whole slurry and it worked. These days I'll prop it up via a starter. I haven't really noticed a massive difference in taste, but the starter approach definitely avoided problems with lag when I just pitched the slurry.

 

[Over The Cliff Brewing]

There is a lot of it. I may use 1/3 of it with a starter for 6% ABV beer.

 

[WesBrew]

Probably good. Ive used slurry 2-4 months old many times. i make a starter just to make sure its ok. i still have some Kolsch yeast from last Fall. was going to toss it but maybe i'll fire it up and brew something.

 

[WesBrew]

L

Probably good. Ive used slurry 2-4 months old many times. i make a starter just to make sure its ok. i still have some Kolsch yeast from last Fall. was going to toss it but maybe i'll fire it up and brew something.

Well, it came back to life , not exactly ripping but but the flask is murky on day 2 and there’s bubble every 10-12 seconds. Yeast is 8-9 months old

 

[Hawkbox]

Yeast is pretty durable.

 

[Over The Cliff Brewing]

It's alive.....

 

[Donoroto]

It's alive.....

How very appropriate @Frankenbrewer
I hear that in Gene Wilder's voice...

 

[WesBrew]

GIVE MY CREATION LIFE !

 

[Over The Cliff Brewing]

How very appropriate @Frankenbrewer
I hear that in Gene Wilder's voice...

That is exactly who I was thinking of when I wrote it....

 

[AHarper]