Quote Originally Posted by jdto View Post
Cheese grater, then thumbs. Press soap down, smooth with water. Done.
+1

I learned (the Hard Way) that heat very quickly becomes excessive, and in a flash you've lost the EO/FO's aromatic qualities. As the man said, "grate it, press it, water it" (to which I'll add, "lather, rinse, repeat... for three passes").