I've done a number of brews on this unit now from pale lagers through AIPA's and still playing with it.
There will be a PID option coming out I believe.
There's still some tweaking of design going on to iron out some minor inconveniences and the Aust release will have these done.
So far, brew house efficiencies are running in the 80+ % range, with due care to milling, temps and mash pH etc. certainly better than I'd expected.
Stuck sparges will be identifiable as only the excess wort from the pump/recirc goes through the overflow pipe. There's a large area of grain bed under the mesh screen and an adjustable height for the overflow pipe.
The 2000w setting is only engaged to elevate the temp if it's a big jump.
I know there's a lot of Brewers who want a PID. Fair enough, but FFS, there's guys out there making good beers using glass thermometers and $10 cheaparse dial thermometers who don't have a nervous breakdown every time they pick it up. The PID option was requested originally and will come, but in reality, +/- 1 degree for 2 minutes isn't going to turn a gold medal beer into swamp water.
There's a team of people out there including some talented pro and amateur Brewers who are working hard to bring a decent product to market at a reasonable price. When you've actually seen it or brewed with it would be a good time to provide feedback both negative and positive.
It's no use trying to compare a GF unit to a BM unit. Different pieces of kit althogether. one is under 1K, the other over 2k.
The Grainfather will fill a niche and will make perfect sense to the majority of Brewers making the majority of beer styles in single batch sizes, but at under 1k, won't be the same as any 2.5 or 5k system.
In the meantime, if anyone in Brisbane or on the Sunshine Coast wants to host a brewday for a dozen or so guys, I'll happily provide the recipe and make the trip down to make it happen. Host gets the beer. No sales pitch and no expectations.
Martin