To visit the Sweet Note Bagels bakery, a spare, 600-square-foot manufacturing space within the old Le Bus headquarters in Manayunk, you'll have to sign a nondisclosure form, or, at least, pledge not to reveal any trade secrets.
After all, a good gluten-free bagel is hard to find, and even harder to make. And Sweet Note founder Michelle MacDonald, 28, has learned from experience that plenty of people would like to get their hands on her patent-pending process.
Her company, which is 15 months old and run by three women under 30, is selling 5,000 bagels a week, serving 70 restaurants and shops in five states. Recently, Sweet Note put its bagels to the toughest test yet: It began selling in New York.
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