Retsel Mill Stone Over Heating
I just purchase a used Retsel Mil-Master that was manufactured in 1981. The previous owner said that they used it twice and put it away until I bought it from them today. There was some caked on flour and glazing on the stones which I got rid of using rice. But the stones are always very warm or too hot when I try to mill red hard wheat kernels or rye kernals (haven't tried other grain types yet). The flour also comes out very warm. The motor is not overheating any more than normal from what I can tell and the stones are definitely hotter than the motor. I am a newbie at this, could anyone tell me why the retsel stones are heating up so much? I know the point of a retsel is that its not suppose to heat the flour as much as the micronizer mills.
The stone is hotter than 109F, the flour is around 108F. Could it be because (1) there is too much moisture in my grain (I do notice glazing on the stones after grinding rye as well) and (2) I am grinding it too fine on the first mill?
Thanks in advance!