Sure, but be warned: it sounds like a pain in the rump and a lot of work, but it isn't once you actually start doing it.
Supplies:
1) Two used K-cups
2) Bun-type coffee filters
3) Sharp knife
4) Scissors
Prep of molds:
1) Carefully cut the foil off the tops of two used K-cups. Inside there is a tough paper filter. Carefully cut it out.
DO NOT cut off the rims!
2) Gently scrape any remaining foil/paper off/out of the empty K-cups so the rim and insides are smooth.
Use:
1) Take a coffee filter, center it on the bottom of one of the prepared K-cup molds, and wrap the filter around the mold.
2) Gently slide the second mold over the filter and first mold until the filter is about 2/3 of the way into the second mold.
Firm but gentle pressure is needed, being careful not to tear the filter.
3) Trim the excess paper around the edge of the mated molds; throw away.
4) Remove the top mold and completed paper filter, insert into My K-cup basket, and continue with adding coffee, assembling
the , and brewing as usual.
5) Remove the paper filter and damp grounds; throw away. The K-cup basket should be clean, but the lid will likely
need to be rinsed.
Steps 2 thru 3 sound tedious and time consuming but should take less than a minute after you've done it a couple of times.
With practice you can make at least three a minute and have a supply on hand. The difference made by adding the paper
filter to the My K-Cup makes is truly amazing. With reasonable care the molds can be used indefinitely; mine have been in
use for nearly two years and show no sign of wearing out.