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Old 01-18-2013, 10:21 PM   #11
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For a slurry, I would just make a starter (first step of a 2 or 3 step program) and make sure there's at least a decent amount of good cells in there. IME, older yeast (3+ months old) can/will take longer to get going (even in starters, on stirplates). After that first step, though, they act like fresh yeast (mostly because there's a good population of fresh yeast in there now).

Even with the underestimating done by the sites, you're not going to over-pitch the yeast you need. Considering how many cells you'll have post fermentation at least.

I've used 10+ month old vials/packages of yeast before. I just did a 2 or 3 step starter for them. I have some that's over a year old now, that I plan to use with starters. I figure that the first step will tell me if they're ok to use or not. If I get nothing from them after about three days (or 72 hours), I'll probably give them until the following morning to show sign. If nothing, then I'll just toss the small starter and get fresh yeast. Not much of an issue for me.
Same story here. I do it all the time because the outdated yeast is 1/2 price at the LHBS
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Old 01-19-2013, 01:27 AM   #12
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I want to use yeast that's about 10 months old and "washed" per the sticky. Is there a certain smell that says it's no good? Silly question, I know; but I thought somewhere in that long sticky, weird smells were mentioned. I'm not sure what to "look" for. I think it's fine, but I'm looking for more info before I use it.

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Old 01-19-2013, 01:31 AM   #13
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I want to use yeast that's about 10 months old and "washed" per the sticky. Is there a certain smell that says it's no good? Silly question, I know; but I thought somewhere in that long sticky, weird smells were mentioned. I'm not sure what to "look" for. I think it's fine, but I'm looking for more info before I use it.
Think of what the yeast smelled like when new/fresh. Think back to how it smelled when you put it into the jars. If it smells like either of those (or close to it) then you're good. If it smells like a thousand dirty asses all taking a dump at the same time, while eating durian and belching, I'd not try it.
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Old 01-19-2013, 01:48 PM   #14
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Not sure it smells like dirty asses.... That's funny. I might try stepping it up a bit. Decided to brew Tues instead of today, so I have time to buy fresh yeast if I decide not to go with this. Thanks for the description Golddiggie.

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