Amazon.com: Galanz 2-in-1 Grind and Brew Coffee Maker with Adjustable Grind Size, Digital LED Touch Screen, Removable Coffee Filter Basket, Clean Indicator Light, 1000W, 12-Cup, Stainless Steel: Home & Kitchen
Coffee Filter Holder Stand for 2 Filters Coffee Machine - Etsy
I accidentally left my espresso machine's filter holder in a espresso cleaning powder solution overnight instead of for the recommended 30 minutes. The only ingredient listed is sodium hydroxide. Is this tarnish/residue