Your response is great and on point. I am not OP, but the filter is not to prevent scale from depositing in the kettle. Nor is it for filtering out dissolved mi

Your response is great and on point. I am not OP, but the filter is not to prevent scale from depositing in the kettle. Nor is it for filtering out dissolved minerals in the water. My kettle often ends up having small grains is scale floating around freely. If I completely empty it, they go into my coffee. Such a filter would keep these bits away from my brew.