Even though corn is now selling for less than half of its June price, the Thanksgiving turkey that feeds on that corn costs 8% more per pound. The wheat baked into the dinner rolls is down 60%, but the rolls are up 16%. And the soybeans in all those holiday pie crusts? Down 47% since summer, but cost is 9% more, the CBS study found.
Experts say it’s because grocery pricing is about more than just commodities.
“Raw commodity costs represent about 20% of the total food bill at the grocery store. …

Corn prices have plummeted by more than 50 percent over the past six months, while food prices are up 6 percent for the year, according to data released recently by the Bureau of Labor Statistics.
At the same time, energy costs fell 17 percent and transportation expenses dropped 10 percent in November.
“The truth is corn prices have almost no effect on grocery store prices, and apparently even the impact of fuel costs is minimal,” said Randy Woodruff, president of the Wisconsin Corn Growers Association, in a press release.