Rousing Refrigerated Yeast

[scotchpine]

I've got some Wyeast 1272 from a previous batch that sat in the fridge for a week under beer. Then I washed it with sterilized water and it's been sitting under that about 2 more weeks in fridge. I've got ingredients for an all grain pale ale comming today, og about 1.053. I don't have any extract or unfermented wort to make a starer with. Want to brew tomorrow. Can I rouse this yeast tonight by putting some honey and a little bit of hops in some boiling water and cooled, and add the yeast? I have a packet of US-05, should I just use that instead? I really liked the 1272 in the last 2 beers. Or any other ideas that I could try? Thanks

[dstar26t]

How much to you have?

[Stinkfist]

you do not want to make a starter with simple sugars(i.e honey, sugar)....the yeast you create may not be able to eat the complex sugars..

[dstar26t]

If you have enough, just pitch it. Or wake it up with some of the wort during the brew day.

[Bugeater]

After your wort has come to a full boil for a couple minutes, take out about a pint and cool it quickly in your freezer (or outside if you live in this part of the country). Add that to your yeast and let it sit until after you have cooled and aerated the rest of the wort after the boil. You won't see much activity in that hour or so, but it should revive the yeast enough to get it to start right away.

Wayne

[Hoser]

After your wort has come to a full boil for a couple minutes, take out about a pint and cool it quickly in your freezer (or outside if you live in this part of the country). Add that to your yeast and let it sit until after you have cooled and aerated the rest of the wort after the boil. You won't see much activity in that hour or so, but it should revive the yeast enough to get it to start right away.

Wayne

+1

Or just take a pint or so of your late runnings off of your mash that you would otherwise dump if you get good extraction(provided it is above 1.008). Then bring that to a boil, cool, and add to your recommended repitch volume off of http://www.mrmalty.com/calc/calc.html. I would not use honey or simple sugars because of the above mentioned problems.

Hoser

[scotchpine]

After your wort has come to a full boil for a couple minutes, take out about a pint and cool it quickly in your freezer (or outside if you live in this part of the country). Add that to your yeast and let it sit until after you have cooled and aerated the rest of the wort after the boil. You won't see much activity in that hour or so, but it should revive the yeast enough to get it to start right away.

Wayne

Thanks Wayne, I'll try that and just use the S-05 as a back up if I need it

[scotchpine]

After your wort has come to a full boil for a couple minutes, take out about a pint and cool it quickly in your freezer (or outside if you live in this part of the country). Add that to your yeast and let it sit until after you have cooled and aerated the rest of the wort after the boil. You won't see much activity in that hour or so, but it should revive the yeast enough to get it to start right away.

Wayne

+1

Or just take a pint or so of your late runnings off of your mash that you would otherwise dump if you get good extraction(provided it is above 1.008). Then bring that to a boil, cool, and add to your recommended repitch volume off of http://www.mrmalty.com/calc/calc.html. I would not use honey or simple sugars because of the above mentioned problems.

Hoser[
That's what I did. Boiled 20oz of last runnings with a couple hops pellets, then chilled. The yeast bottle seemed to have a good bit of pressure in it after shaking and sitting at room temp a few hours. Mixed and left in bowl with aluminum foil cover. Without an airlock it was hard to tell of viablity, but pitched it 1 1/2 hrs later. At 69 degrees it has taken about 15 hours to notice any activty. There is some, but it's very slow. Batch OG 1.051. I'll give it maybe another 12 hours before I would decide to punch it with S-05. BTW, I also saved a liter of the second runnings in sterile mason jar for my next starter. How long will this stay good in the fridge?