Good quality bi colored corn has full, evenly formed ears with straight rows of kernels. The husks will be fresh-looking and bright green, and the silk ends free of decay or worm damage. Be sure the coloring of the kernels is bright and shiny. Avoid corn that has shriveled, burned looking husks or has dark-colored slime in the tassel. Wrinkled kernels indicate old corn. So, what’s the difference between yellow and white corn? Yellow corn has larger, fuller-flavored kernels. White corn kernels are smaller and sweeter. As for bi colored corn . . . it’s a hybrid, with 80% yellow kernels and 20% white kernels.