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Yes, I was mashing at full volume and I did stir periodically. It is possible that a significant portion of the mash was over 158 for a significant period of time. Adjusted for miss-calibration I was targeting 154 degrees. My thermometer could have read 152 (really 156) without me taking corrective ...

Forum: From Mash to Lauter (Water to Sweet Liquor)
Topic: Crisis in the brewery: Low attenuation, sweet beer
Replies: 9
Views: 19050
10 years ago
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Those are final numbers given several extra weeks to finish with no additional progress. As previously stated, I've ruled out yeast health and fermentation temperature control. I've brewed 30 batches of extract beer with no issues. It has to be related to mashing.

Forum: From Mash to Lauter (Water to Sweet Liquor)
Topic: Crisis in the brewery: Low attenuation, sweet beer
Replies: 9
Views: 19050
10 years ago
Jump to post

1.076 to 1.039
1.054 to 1.030
1.061 to 1.032
Measured with a refractometer with no correction for alcohol

Fermentation obviously started, just ended sooner than I was expecting

Forum: From Mash to Lauter (Water to Sweet Liquor)
Topic: Crisis in the brewery: Low attenuation, sweet beer
Replies: 9
Views: 19050
10 years ago
Jump to post

Crisis in the brewery: Low attenuation, sweet beer

Hello all, When I switched from extract/partial mash to BIAB about five batches ago, my beer went from good to sweet and unattenuated. I've ruled out yeast health and fermentation temperature control, which leaves wort fermentability. I recalibrated my mashing thermometer. It was reading 4 degrees F...

Forum: From Mash to Lauter (Water to Sweet Liquor)
Topic: Crisis in the brewery: Low attenuation, sweet beer
Replies: 9
Views: 19050
10 years ago
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Hello all, First, I love beer. I've brewed about 30 partial mash, 5 gallon batches over the last 18 months with results ranging from OK to excellent, with a couple of early failures, in my own humble opinion. I've brewed kits and others' recipes and developed a few of my own. I'm in the process of a...

Forum: BIABrewer.info and BIAB for New Members
Topic: My First Post! - Post here to become Fully Registered
Replies: 8966
Views: 8378524
10 years ago
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Crisis in the brewery: Low attenuation, sweet beer