Most industrially baked breads contain sugar. Typically 2-5g per slice. I haven't really had industrial bread without sugar, but it doesn't surprise me that the

Most industrially baked breads contain sugar. Typically 2-5g per slice. I haven't really had industrial bread without sugar, but it doesn't surprise me that the sugar is required for taste. "Good" bread has long ferment periods that gives the bread a lot of time to develop flavor. It's probably much faster to cut the long ferment periods and use sugar for flavor instead.