You've probably heard the phrase "circular economy" tossed into sustainability conversations. It sounds like jargon. It often is. But the underlying idea is simple, important, and increasingly relevant to the way Hong Kong feeds itself.

This post unpacks what a circular economy of food actually means, why the linear system we currently run is so costly, and what a more circular alternative looks like in practice — including the small but meaningful role that food rescue apps, upcycled products, and events like Rescued Feast play in closing the loop.

Of all the sustainability trends crowding the F&B headlines in 2026, upcycled food is the one quietly winning. Per Tastewise's trend tracking, it's the fastest-growing category in zero-waste food — and unlike a lot of buzzwords, it has a clean, useful definition and a real climate case behind it.

Here's what it is, why it works, and what's actually worth trying.