Hot answers tagged storage-method
See How long is it safe to drink coffee after brewed? which indicates between 4-7 days is reasonable. You do not want to continually top off old coffee with new. While I cannot imagine that would give you good tasting results, it would also let any pathogens which do take hold continue essentially forever without being thrown away.
I don't know for sure how long you can keep it in the refrigerator, but it should be essentially indefinite in the freezer. You could freeze it in ice cube trays, then when the cubes are set, transfer them to a plastic bag for easy storage and access. You could even make each cube the right amount for a single drink.
I don't know that it's any less bulky, but this one is dedicated to canning Vacucanner. It does several cans at a time. Here's a review If you like DIY projects, you might be interested in this video. DIY Vacuum Canner
Only top voted, non community-wiki answers of a minimum length are eligible