So you don't recommend getting the reusable stainless filter?
Discussion
You can reuse the paper filters about 20 times just by rinsing them off before each use.
Any more than that & you risk a blow out. I don't count but after a while the paper becomes dark as it's embedded with really fine coffee grains.
I've been using these for about 7 years & I've only bought 1 stack of replacement filters.
2 cents a filter and the worms eat them. I can't be bothered to have to clean out a filter.