Brass is not a good material for a porta filter handle because it gets too hot. I made this from Gabon Ebony. As I mentioned, I do not have wood working equipment, so I used a metal lathe to make this. Ebony is so hard that it almost behaves as metal. (I was careful to remove all saw dust, because metal lathes tend to catch swarf, and if left in place I am sure it would seriously damage a lathe.) Ebony is so hard that I cut threads directly in it to attach the portafilter. I realise that ultra hard wood like ebony can have problems with cracking from variable humidity. I immediately gave it repeated tung oil treatments until it would not soak up any more, then I let it cure a week and sanded it with very fine sand paper, and then rubbed it with steel wool. It is amazing how dark this wood really is. It has beautiful grain if one examine it close up.
I want to make a boiler cap from Gabon ebony sometime too, and also try to make another steamer valve knob, but this one from ebony instead of brass. This will certainly require a brass insert, because it will likely crack otherwise from the high temperatures.







