[This review was collected as part of a promotion.] I already use #4 cone filters in my kitchen, and they fit perfectly in this for easy clean up (I use the brown bamboo). Coffee filters are obviously not required, it works equally well without them. It's a basic pour over, nothing crazy there. What is crazy is the packability and light weight. I could carry this is my shirt pocket or a pants cargo pocket and forget its there. The origami design is so clever and ingenious.
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