When you go out for grocery shopping and go towards the veggies section, the fresh produce is often stored in bags with horizontal green stripes. These green stripes are often thin and almost unnoticeable. Have you ever noticed and wondered about their purpose?When you go out for grocery shopping and go towards the veggies section, the fresh produce is often stored in bags with horizontal green stripes. These green stripes are often thin and almost unnoticeable. Have you ever noticed and wondered about their purpose?