Jay, my one and only Barrell is a single barrel, and I am not positive what the source is though I believe it's MGP. I'll have to try and find one of the blends, is that one a specific batch number?
Here's the tater sticker on mine for chits and grins.
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Thanks Dave, Julian, James, Kelly, Peter, Gerry, Dave, Mo, Frank, Týr and Mr. Mark!