I would like to see a hand mill added to the game. Something that allows people to grind grain by hand, perhaps at a similar Phlegm cost to pressing oil. It could be unlocked by a combination of Quarrying and Joinery & Finish.
With the new difficulties of getting high level skills like Windmill Theory, I think it's a good idea to have a grain milling option that doesn't cost so much more effort to get than Agriculture costs.
Some people don't want to go to Boston every time they need to grind a few sacks of oatmeal.