We use Mucicarmine placed in a small dropper bottle, it does not wash out in the processor and makes the tissues easy to see once embedded. Lisa White, HT(ASCP) Supervisory HT James H. Quillen VAMC PO Box 4000 Corner of Veterans Way and Lamont PLMS 113 Mountain Home, TN 37684 423-979-3567 423-979-3401 fax