How to remove a KMnO4 stain

Although it is a very uncommon problem, occasionally we have had customers tell us that they have gotten a purple stain from the pellets in the E.G.G. packets.  Generally, the stain washes right out.  But if it still is visible, soak the stained item briefly in vinegar.

When we first received a customer support call about a stain, we did a little research, staining various items and surfaces to see what was the best removal method. Although vinegar worked on virtually everything, there were some surfaces that left a slight discoloration. We found that campden tablets removed those quite nicely. So, we laid in a supply of them to send to any customer that needed them. To date, the bottle has not been opened. But still, it is good information to have.

Tags: campden, potassium permanganate stain, stain removal