Attempt to get a strong banana flavour to the beer, using a classic approach. The 30C and 40C rests are to induce maltase activity; the very high water:grain ratio helps with this, as maltase is more active in higher pH. The 64C rest for 30% of the mash serves to create a large pool of maltose for conversion in the 40C rest to glucose (by maltose); this ensures a high glucose to maltose ratio to increase production of isoamyl acetate during fermentation. Skipping the beta amylase sacc rest by bringing the whole mash to 72C (where alpha amylase is at work) will hopefully prevent too much additional maltose formation, though the beer may have a lot of body, as it is a high mash temperature.
3rd place German wheat beer at NCHC 2016
Award Winning Recipe