It's an inexpensive reusable coffee filter that fits any Keurig-brand at-home coffee machine, so you can use it however many times you want without guilt or going to a coffee shop. And it's easy ...
You’ll need filters to line the basket—the brand ... you could be disappointed in this machine’s temperature. Like most Keurig coffee makers, the K-Duo is very easy to use.
but it can be seriously tainted if it's coming out of a dirty coffee machine. If your cup of joe is coming from a Keurig, we asked a few experts about everything you need to know to keep it ...