X-ray Jar — [upd]

Have you used an X-Ray jar before? Drop a comment below with your favorite hack for long-term storage.

Despite the sci-fi name, this isn't radioactive, and it doesn't require batteries. It is a simple, 5-minute DIY project that allows you to see the contents of a sealed container without opening it. x-ray jar

5 minutes (plus drying time) Cost: ~$0.50 Have you used an X-Ray jar before

Because the background is black, there is no glare. The result looks exactly like an X-ray image: black background, white outlines of the food inside. It is a simple, 5-minute DIY project that

Unlike standard medical X-rays, industrial jar scanners use low-energy beams to penetrate the packaging.

When you store dry goods inside (rice, beans, flour, sugar, or even hardware like nails and screws), the black paint blocks out all ambient light. The only light entering the jar comes through that thin slit.