I just brewed my hefeweizen for the 3rd time. At the time of the first batch I'd read an article that suggested a ferulic acid rest at 110°F to accentuate the banana notes in the aroma.
I mash in a picnic cooler a la @DennyConn and am having issues with the raising the mash temp to the 150s.
Initial mash is 11.75 lbs of grain and 2.9 Gal. of water @116°F. I hit the temp fine and let it rest 20 mins. At 20 mins, I added 3.8 Gal. of water at 170°F and only hit 140°F.
I used the strike temp calculator at Homebrewing.com with the following data:
- Grain Mass - 34 lbs (2.9 Gal. water (@8.5lb/Gal) + 11.75 lbs)
- Grain temp - 110°F
- Water amount 3.8 Gal.
- Target Mash 152°F
I verified using a different calculator and got similar results. What am I missing?
Also, BeerSmith showed that I needed to use 189°F water for the sac rest and I ignored it in lieu of my regular calculator.
(BTW, I added another 1.5 Gal. at near boiling to her the mash to 150°F to salvage the mash)