I had wondered where the red slime on my oven door handle probably come from. When I saw the same red lubricant at the edge of the baking sheet, where I had the day before touched with my new oven gloves, it dawned on me. Unfortunately, the color is not so easy to wipe. Without a little detergent, with a damp cloth, teamed up as much. Let's see whether there that when you mitwäscht the Dinger times. Hopefully I screw me that's not the washing machine. Update 03/17/2015: This addendum course by fairness: After the first wash (40 degrees), under the apparently neither gloves nor the machine have suffered, everything is fine. Rating changed to 5 stars, well, let's say four, because of smeared oven door. That does of course anyone who enjoys these oven mitts, discourage the purchase. You know now all you need to know to avoid this annoyance, I have experienced it. Make up first of all to anything suitable one "Grabbeltest" and wash the things in doubt before the first real "commissioning". I assume that 30 degrees do it. Then you can from the outset only happy about this cheap and chic kitchen accessory. And five star award.