Oh, I forgot to ask. I buy powdering milk and buttermilk in bulk. No matter how I store it, it seems to solidify into a big hard lump. Any suggestions on how to store it so that it remains loose? It's moisture, Patty. Maybe if you packaged it in smaller amounts, and kept it tightly wrapped with no air -- say, by putting it in totally filled zip-lock bags? Or maybe in one of those cracker canisters with the moisture-remover thing on top? PJH

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