Reusable means the container is designed for repeated cycles: the strength, the closure, the cleaning behaviour and the handling all assume it comes back. It is a different claim from recyclable, which describes what happens at end of life.
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What is the difference between reusable and recyclable packaging?
One describes how many times you use it. The other describes what happens when you stop.
TermReturnable packaging
Packaging designed to come back and be used again, usually within an agreed loop.
TermRecyclable
Able to be collected, sorted and processed into new material in practice, not just in theory.
TermClosed loop
A returnable system where containers travel between known, fixed points.
If this becomes a real requirement
CAQUIN sources industrial packaging to specification. Send what you use today, roughly how much, and where it ships — a photo is enough to start.