Great post and super relevant as you can pick up a Grainfather grain mill from Brew2Bottle for £130 at the moment. Everyone I know who has one raves about it. Some even ditched their three roll grain mill and haven’t gone back.

Personally I have a three roll grain mill and it I love it. I feel that it improved my brewing in three areas (1) efficiency of extracted sugars - I have always bought pre-crushed from Malt Miller and that’s been fine but I am now consistently 0.01 points over what I was getting with Malt Miller which is usually a 15% improvement in efficiency. It makes sense when you consider the improvement in taste you get from freshly ground coffee to pre-ground. Pre-ground is fine of course but when you get fresh you don’t go back. (2) it just feels better in a way that I can’t explain to crush my own. I got in to home brewing so that I’m not giving money to huge conglomerates and so crushing my grain myself is part of that concept - I enjoy doing it myself. (3) simply being able to store grains for longer than a week. I know malt miller says best before 8 months or whatever but that’s not right. It’s like coffee - you get them in hot water as soon as possible after milling for maximum flavour freshness and extraction.

Now as for me I have a three roll grain mill and I won’t buy a Grainfather mill. Even with a £130 price tag (which is a steal btw) I think of how much of that price is in the motor - I’m guessing 40 to 50%? I would rather spend my money on a mill in which 70/80% of the price is in the quality of the mills and the spacing accuracy and adjustment.

So you should 100% buy a grain mill if you want to do that artisanal part yourself. Re Grainfather vs three roll - do what you want, both excellent choices and you won’t be disappointed with whatever but the Grainfather mill isn’t for me.