> Unrelated: using paper filters is less eco-responsible than the gold foil filter, but makes for better coffee. You can use the paper filters more than once t

> Unrelated: using paper filters is less eco-responsible than the gold foil filter, but makes for better coffee. You can use the paper filters more than once too; typically I need about one or two a week (depending on which coffee and how lucky I am), meaning that one €4 350-pack filters will last for years (I just bought my first refill after 4 years, but I didn't re-use the filters for the first few months and I gave a bunch of them to a friend when he ran out). Re-use isn't necessarily more eco-friendly by the way, because cleaning takes energy too and cost of production can be much much higher. But realistically, the eco-impact and differences are so small it's not really something to worry about.