Mash temp of 147 = Est FG 1.007, but mash temp of 146 = 1.013?

[pensphreak]

Using BeerSmith, when I set the mash temp of my recipe to 147, I get an estimated FG of 1.007. When I lower the mash temp to 146, the estimated FG bumps up to 1.013. I would expect the FG to go lower/drier at a lower mash temp. Am I missing something here?

 

[Dan]

That does seem odd, lower mash temp should mean more fermentable wort but also the lower the temp the longer the mash might take so you could increase mash time and see what happens.

I wouldn't think one degree would make a significant difference though. I also didn't realize BS FG estimates account for mash temp. Going to have to play around with it when I get home tonight.