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This Bottle of Dijon Mustard from Costco is Crazy Hot. A Months-Long Investigation Revealed the Surprising Reason Why.
Jake Edmiston, a business reporter for the Toronto Star, thinks highly of his mustard chicken recipe. So when one batch goes over like a lead balloon, he checks his namesake ingredients and finds that his usual glass pot of Maille Dijon Originale is extraordinarily spicy—a fact he confirms, good reporter that he is, by conducting a blind test with a professional taster. In no time, Edmiston is on the floor of one of Canada’s largest mustard mills, trying to stay dry and avoid mustard dust burns(!), and peppering Unilever, Maille’s owner, with questions. This isn’t exactly a case for Benoit Blanc, but Edmiston’s investigation takes a few surprising turns and drops some serious knowledge on glucosinolates on the way. Every ingredient is in harmony here.
“Do a little dollop,” she said, then turned her back so I could do my work in secret.
I spooned the mustard from my jar onto a plate, and some from another jar of Maille I found in the grocery store that morning. She tried the sample from my jar first and sputtered a little.
“It’s quite spicy,” she said.
I asked her how much spicier it was than the control jar.
“Like, 10 times,” she said.
