I used this about 10 batches over the last few months. Its a lot longer than I needed especially with my false bottom so I went down one size. It was thoroughly rinsed after every batch and hung to dry until the next use (learned that lesson with another one--never stick one in your kettle and close the lid, you can't get mildew out!). Never any chemical cleaners so it does show some staining but should last a long, long time. Their model 4062 which fits kettles 13-16" diameter and 17-21" deep. $30 shipped in the continental US, but buyer pays payment fees, if any.