In essence, the Clever Coffee Dripper combines the best features of French press and filter drip brewing, eliminating the drawbacks of each.
With French press brewing, you have control over steeping time, but heat loss and sediment in the cup can be a problem.
Brewing with a paper filter is easy and convenient; the problem is lack of control over steeping time (i.e. the coffee begins to drain immediately). By adding a stopper to the filtercone, the Clever Coffee Dripper combines control over steeping time with a sediment-free cup. We call this a "full immersion brewing" method.
The dripper will fit on cups and thermoses with tops wider than 1.5" and less than 3.75" in diameter. BPA-free Plastic. Not dishwasher or microwave safe.