Gravity discrepency, brewers comment
Jeff"Truthbrew" was kind enough to post something on the BBB written by Kris from DeDolle explaining what had happened to them in the time since Palm took over. This is a excerpt from that:
As I had done tests with oerbier wort with other strains, which were not convincing, I thought the best thing would be to reuse the yeast. For a single strain, that would be a good method, but with that complexity of the Rodenbach yeast soon some unexpected things happened:
- The alcohol by volume of Oerbier increased from 7.5 % to 10.5%. For Stille Nacht , the density of which is even higher, it increased from 8% to about 12%.
- With problems of refermentation as a result!
Okeedokee, so Stille Nacht had - prior to this yeast test - enough gravity left to produce an additional 4% alcohol? Anyone else's eyebrow raise at this one?