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Our drip coffee maker has a little water filter inside which needs to be changed occasionally. We changed it for the first time in about 6 years this past weekend. I had bought the wrong filter though (the Keurig one looked like it would fit our Cuisinart!!!!) and the new filter needed to be, uh, drained of some of its charcoal in order to fit.
So, here's how these things work: Water goes through meshy fabric, water goes through charcoal, water comes out pure and not full of chlorine and minerals.
I snipped open the old filter too, so we could see what used filter charcoal looks like. These photos are of charcoal grains about the size of sand grains, maybe a little bigger. In these examples, the new charcoal (photos 1 and 2 where the grains are dry) looks exactly the same as the old charcoal (photo 3 where the charcoal is wet) which had been in service for 6 years. I had thought maybe there would be some discernible difference in the look of the charcoals, but I can't see any.
At the bottom of this post is a closeup of the fabric of the container that makes up this charcoal filter. Looks like a synthetic fiber to me, but I don't know for sure. You can see some crud has become trapped in the fibers. So, REMINDER, change your cruddy old water filters. They're gross!
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Send me your suggestions for something tiny that you'd like to see big.
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