Casey IL. ( I -70 ) then south on rt.49 | I us a 1" grinding hay or straw. I have used a 1/2" befor getting the 1" and it worked ok.
I am not sure you can grind strate straw I think it will be so fluffy that it wont come out. I'd try it a little at a time , very little ' I am gringing it in my cow feed. only 1/3 hay and that gets pretty fluffy. |