That really is quite an amazing project that he did! I’m going to be using that information in recipe calculation for sure. What I was surprised by is that sucrose wasn’t closer to 100% fermentable.
With a 60 minute mash the “153” maximum fermentability is reasonable. The Beta enzymes have hardly had time to work. As temperature drops everything works a little slower. I wouldn’t be surprised if there wasn’t even complete conversion.
I would bet that if the mash time was 90 minutes for all of the temperature tests the maximum fermentability peak would be lower.
This is an interesting topic. I really don’t think any individual homebrewer making beer at home, even with the most sophisticated equipment available, can refute data generated in a lab, by a trained lab technician.
I’d be amazed if those finicky germans haven’t done this research 80 years ago.
Does anyone other than me sometimes think we homebrewers reinvent the wheel a lot?