I have a back-up processor we keep filled for a back-up and if we have an extra run. However with lower volumes lately we aren't using it. I was just wondering about the paraffin in particularly. Does anyone know if you are not using it how long it can stay there (its heated) before changing out completely? Does it lose its stability? Thanks Anne Murvosh (HT) _______________________________________________ Histonet mailing list Histonet@lists.utsouthwestern.edu http://lists.utsouthwestern.edu/mailman/listinfo/histonet