Barkeeper or not, this stuff is definitely my friend. I keep trying it in different applications, and it never ceases to work, very well. Made a paste with warm water to treat a Kool-Aid stain on cream carpet today. Didn't over bleach, and took the stain right out. Left a bit of a powder residue that vacuumed up nicely. And yes, we drink Kool-Aid. Cherry Kool-Aid.