I clean my brushed thoroughly using most of the methods above. But in addition, because our tap water leaves behind a white scum if we boil water in a pan, I know there will be some residue left behind, even when I do a final rinse in filtered water.
So, I bought some Ship-Shape Comb and Brush cleaner to use every so often. It's available on Amazon or beauty supply stores, if you prefer.
So, I bought some Ship-Shape Comb and Brush cleaner to use every so often. It's available on Amazon or beauty supply stores, if you prefer.