Same filter basket for coffee percolator after I had a paste setting on it of OxiClean. After 10 minutes a rinse now shows the stainless steel is very shiny and clean compared to the first photo.
https://cdn.masto.host/awscommunitysocial/media_attachments/files/113/551/580/125/218/885/original/19f020a38c7829d3.jpeg