Huff Post – September 14, 2017
Here’s the important thing you need to know: if you use the shiny side, you’re doing it right. And if you use the dull side, you’re also doing it right. According to Reynold’s Kitchen, the difference between the two sides has nothing to do with cooking. It’s just a result of manufacturing. (There IS a difference if you use the ‘non-stick’ product – dull side up)
In this divisive world; this hopeful sign
Both “dull” or “shiny” will just work fine.