askahealer profile image 54

What is sulfur flour and what is it used for?

Found an old box of flour sulfter from C-B Manufacturing at a thrift store. I collect old boxes so bought it. Appears to be some kind of health product as it is marked "for external use" but for what? I've only seen it listed for fertilizer and cooking.


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MickS profile image73

MickS says

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6 years ago
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