I work at a company of about sixty people. Like most offices, there's a communal coffee machine in our break room. It's what I understand to be a typical drip machine, pretty confident it's a Bunn VPS 12.
The grounds used are Maxwell House.
The filters are pretty generic looking, and the water is straight from our local tap.
The end result of all this could charitably be described as burnt water.
I know you can spend pretty much any amount of money on beans, roasters, grinders, presses, additives, and everything else that could possibly be coffee-related. But I'm not trying to make the best imaginable cup of coffee. I'm trying to make about 200 decent cups of coffee a day, for relatively little investment.
I've cleaned out the machine with Goo Gone coffee maker cleaner, to no significant effect. Past that, everything I can think of involves permanent changes to the process, and I want to have some way to justify that before I push for it. Where would my investments of money and political capital be best directed?