This story appears in the February 2019 issue of National Geographic magazine. Ketchup—that cheerful red sauce sold in handy glass bottles—first came on the American market in the 19th century.

Following is a transcript of the video. Narrator: Ketchup, it's everywhere in the US. 97% of Americans have a bottle in their fridge. It's the sauce we put on our hamburgers, our hot dogs ...

Ketchup bottles are a solved technology, right? Wrong! As it turns out, there is still great development being done in this space. Industrial imaging company Lumafield reveals to us the secrets of ...