Originally posted by NobleSquirrel Through what pathway? Ferulic acid is the precursor to 4VG, not isoamyl acetate. To increase any esters for any yeast strain there are some sure fire ways of doing it, and some are safer than others. Let me remind you that yeast stress is the number one cause of ester formation and 90% of ester formation will occur during the lag phase. 1) Ferment above or below the recommended range of the yeast strain. 2) Oxygenate less or more than recommended. 3) Underpitch. 4) Decrease FAN in your wort through the use of adjuncts. 5) Increase the presence of Zinc in your wort, remembering that Zinc can be toxic to yeast. That being said, if I wanted to make a weissbier with a lot of isoamyl acetate, I would use the 3068, pitch 8*10^6 cells/ml, oxygenate normally and ferment at 72 degrees. That would certainly give you plenty of banana. |
My bad, I had the two products backwards. I think largely because I don’t much care for a lot of banana in my hefe... |
Originally posted by SamGamgee Hefeweizen is outside of the reinheitsgebot (but protected) I believe... |
Germans make great beer but German purity laws taken to the extreme have done tremendous harm throughout history. |
According to the folks who produce the yeast: |
Originally posted by NobleSquirrel I don’t think so - what makes you say that? |
Originally posted by JoeMcPhee The original point was that wheat wasn’t supposed to be used for brewing and to alleviate competition with bakers for the wheat. "Wheat beers were originally forbidden by the Reinheitsgebot (German beer purity law), that forbade the inclusion of anything but barley, hops and water (spontaneous fermentation was used instead of yeast). Some say the law was originally intended to save wheat for the baking of bread. Roger Protz [1] states that the Bavarian royal family held a monopoly over barley production and wished to prevent the use of other grains in beer from undermining their monopoly. All the while, the royal Wittelsbach gangsters were still enjoying wheat beers denied to the general population. The laws were relaxed to allow the Schneider brewery to brew wheat beers in 1850. Schneider Weisse is still one of the better examples of the type, and somewhat darker than most. |
Originally posted by NobleSquirrel Also, the reference to spontaneous fermentation = "magic spoon" theory. |
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