I don't think it's a scanning back at all. And he does say in the comments that they were made with a scanner. You can see the toppings are squished against glass and condensation on the glass in some pictures, and strange blueish light that makes the bread look almost mouldy.

I don't like the pictures that much either. I guess technically they're still life but on the other hand, they're just food photos, no matter how ugly or bad the food. It could be described as anti-product photography...