Then I found the My K-Cup Universal Reusable Ground Coffee Filter. It's an inexpensive reusable coffee filter that fits any Keurig-brand at-home coffee machine, so you can use it however many ...

So another reason not to overfill that reusable K cup. Brewing a full cup of coffee For example, when I selected a 10-ounce cup of coffee, sometimes I’d only get six or eight ounces.

You'll save the most, and limit trash, with a Keurig K-cup adapter. Annual cost after initial purchase: $80. Use your own coffee; reusable cup and reusable filter.