Manufacturers are constantly looking for new, more efficient ways to deliver food to hungry consumers. But unfortunately, technologies that promise to bring you your grub quicker aren't always so easy on the environment. Here are some common packaging options ranked by eco-friendliness—starting with the worst offenders and working up to greener options. Every purchase counts, so by putting your dollar toward packaging that's easier on the environment, you're acting as a change-maker and influencing companies and manufacturers to do better.