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Reliably Degrading Shelf-Life Stickers

September 12, 2022

Stickers that show you visually exactly how old your food is.

The Background


One of my passions projects is a brand of granola bars.

It’s lots of fun, and I’ve learned a lot about creating consumer food goods.

One of the most annoying parts of packaging is having to deal with expiration dates. They’re annoying to stamp on and hard to read.

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The Idea


So here’s the idea.

And let me say – I have no idea if this is even technically feasible.

But, if you could formulate some chemical that could reliably change colors over a customizable length of time, then this would work.

Basically, you would sell stickers to food companies that would be a visual representation of their shelf life.

For instance, if you sold milk, maybe you would want a sticker that changes from green to red over the course of 4 weeks. That way it’s easy to tell if the milk is spoiled. The sticker would just be red.

It’d be a better consumer experience, it would probably be easier for the manufacturers, and it would be a good little business.