This is a link to a coffee making system that works extremely well for RV travel:
https://www.amazon.com/RSVP-Manual-Coffee-Carafes-Thermos/dp/B000BUDDTY/ref=asc_df_B000BUDDTY/?tag=hyprod-20&linkCode=df0&hvadid=167117500299&hvpos=&hvnetw=g&hvrand=12394539028938485803&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9004544&hvtargid=pla-314867147184&psc=1
This takes a standard coffee filter and works great for making the coffee directly into a thermos bottle or carafe. The opening at the bottom of the funnel restricts flow so the coffee brews at the proper rate. I usually make a full quart at a time and the thermos keeps it hot for hours. If you do make a full quart, then it will be necessary to fill the funnel with hot water 2-3 times.
I like using a filter. First I don't like the sediment in the coffee, but it also makes clean up simple.
