apeltes
Active Member
Problem:
Stone IPA in 12-oz bottles is very clear and almost seems filtered (is it?). I attempted to get some sediment to streak on wort/agar plates, but did not have much optimism.
Procedure:
Here's what I think may be a different approach: I ran about 6 ounces of the ale through a .45 micrometer millipore filter using a Nalgene analytical filter and put the filter on a spare plate.
Results:
1)I streaked 6 plates with the dregs from the bottle and got one or two cells per plate, maximum. I guess that's enough... but not a great result.
2)The filter has at least 100 colonies on it.
Conclusion:
I think this might work for any beer that has a very low or nearly absent yeast population. I would suggest this for any attempt to farm a strain that has yielded poor results using the standard method.
Please share any comments or questions.
Stone IPA in 12-oz bottles is very clear and almost seems filtered (is it?). I attempted to get some sediment to streak on wort/agar plates, but did not have much optimism.
Procedure:
Here's what I think may be a different approach: I ran about 6 ounces of the ale through a .45 micrometer millipore filter using a Nalgene analytical filter and put the filter on a spare plate.
Results:
1)I streaked 6 plates with the dregs from the bottle and got one or two cells per plate, maximum. I guess that's enough... but not a great result.
2)The filter has at least 100 colonies on it.
Conclusion:
I think this might work for any beer that has a very low or nearly absent yeast population. I would suggest this for any attempt to farm a strain that has yielded poor results using the standard method.
Please share any comments or questions.