If you have the Aeropress you are going to need filters. Avoid the metal filters sold by some, get the official paper filters from Aeropress. Why? Because that’s the way the device was designed to work you son of a Took! These filters can be used a number of times by just rinsing them out after use. So even if you are traveling for weeks you don’t need that many to pack. Some travelers have reported that you can get up to 6 or more uses out of each filter. This package will last a good amount of time for even the most serious traveller. Say, for example you were doing some hiking in the Pine Barrens of New Jersey – no telling what you would find there.