Source for food grade sodium metabisulfite?

[bob_day]

I've been looking for a place where I can buy a couple of pounds of food grade (FCC) sodium metabisulfite. I found it listed on the websites of a few chemical supply companies, but they will sell only to companies and won't deliver to a residential address. Does anyone know where I could buy it? I'm looking very specifically for food grade (FCC).

[lmathews]

What is it for?

[davey]

did you try any home brewing suppliers?

[WMF]

That's what we use to store membranes with in the off season. The Maple Guys or Bascoms should have it. It's known as SBS in the maple world.

[bob_day]

did you try any home brewing suppliers?

Thanks so much! I found it at benshomebrew.com. The package label lists it as an additive to wine must in addition to it's use as a sanitizer, so it should be food grade. Perhaps I'm being obsessive, but I like everything that runs through my RO system to be food grade. (To clean it I use a detergent called Tergazyme, which also has wording on its label that indicates to me that it's food grade.)