Thanks Ros, I have only ground about 2-3Kg at the most so far What I get is very thin sometimes red crema , micro spurts and even cyclone spinning mouse tails and not much good taste yet. This is all VERY Slowly getting better, I pulled into a local roaster and they gave me a KG of over roasted oily looking beans. I spent a couple hours the other day grinding most of them, has not helped much yet, just reduced the number of cranks per dose. It is very time consuming, seems they really need a fair few KGs or a couple boxes of par boiled rice ( did not see them at Coles) An electric motor would be helpful for the seasoning process. seems the TIN coated burrs take the most time.