Derek Toering
Brewer
- Joined
- Dec 13, 2010
- Messages
- 46
- Reaction score
- 0
Hi. I have had some issues with my brews of late. After analysis we have determined that the off flavour is from a stressed yeast. After doing some research it fits the bill. To prove this, I will pitch multiple smack packs next time I brew as opposed to building a starter. Then I will hopefully pin point the issue or at least rule out one process.
Assuming however that it is my yeast process giving issues, the steps below are what I use. Hopefully someone can point out any obvious issues.
To me the process seems ok...but I am doing something wrong. Any suggestions would be welcomed. I appreciate that the above is all quite general from a diagnostic perspective. Happy to give additional details if required. Thanks in advance...
Derek
Assuming however that it is my yeast process giving issues, the steps below are what I use. Hopefully someone can point out any obvious issues.
- Create a starter of DME and water in my flask to approximately 1040. Quantity as advised in beersmith with the use of a stir plate
- Cool flask in cold water until cool
- Run oxygen through a beer stone. Usually a couple of minutes.
- Pitch yeast and place on stir plate in a mild temperature space. Typically the kitchen bench, so around 22 degrees ambient
- Run this for 24 hours minimum.
- Come brew day, the yeast is paced into fermenter and wort is transferred directly on top. Wort goes through plate chiller, and inline oxygenator from the boiler to the fermenter
- At this point everything goes fine. The beer attenuates well enough, the ferment behaves correctly as you would expect.
- Beer comes out with solvent like characteristics. Ferment temp is controlled so is not an issue. It does improve...but not all the way.
To me the process seems ok...but I am doing something wrong. Any suggestions would be welcomed. I appreciate that the above is all quite general from a diagnostic perspective. Happy to give additional details if required. Thanks in advance...
Derek