Hogan
Stalag Brewery
- Joined
- 3/8/05
- Messages
- 772
- Reaction score
- 2
My brew mate went to a well known Sydney retailer last Saturday and picked up a bag of grain. He also bought two phials of White Labs yeast (007 & 830) for me. When he handed them to me I see that the expiry date for the yeast is 28 November. That means they were manufactured on 28 July.
Two calculators showed that yeast with nine days till expiry had a viability of 16%. I understand that uncommon yeast styles don't get turned over as much as the well known ones, but 007 and 830 are about as common as you get.
If I wanted to use yeast with 16% viability I would be splitting a phial into quarters and saving a lot of money. I've done this in the past but decided I'd rather spend the dollars on one decent healthy hit of yeast from one phial and not have to build huge step starters to get viability up to scratch.
I always purchase my liquid yeast from this retailer and accept that sometimes it has aged a bit when I get it but viability has never been below 65%.
Am I expecting too much? Contact was made with a staff member but he was not interested.
Hoges.
Two calculators showed that yeast with nine days till expiry had a viability of 16%. I understand that uncommon yeast styles don't get turned over as much as the well known ones, but 007 and 830 are about as common as you get.
If I wanted to use yeast with 16% viability I would be splitting a phial into quarters and saving a lot of money. I've done this in the past but decided I'd rather spend the dollars on one decent healthy hit of yeast from one phial and not have to build huge step starters to get viability up to scratch.
I always purchase my liquid yeast from this retailer and accept that sometimes it has aged a bit when I get it but viability has never been below 65%.
Am I expecting too much? Contact was made with a staff member but he was not interested.
Hoges.