The incentive follows the coffee chain's decision last year to stop using plastic straws.
Kiwis can now get cheaper coffee when they bring own mug to The Coffee Club.
The café chain will be giving a NZ$0.20 discount on each cup of coffee for customers bringing their own thermal mug instead of using a disposal take-away cup.
“We surveyed our café operators on a range of topics, and this came back as one of the areas that they’re most passionate about,” The Coffee Club Director Andy Lucas explained.
The chain cited a recent study, which revealed that New Zealand uses 295 million disposable take-away coffee cups per year, with 1.7 million of those coming from the brand.
The Coffee Club hopes to reduce that number by 10% as a result of this incentive.
Currently, The Coffee Club has over 60 stores.
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