SINGAPORE – While sustainability seems to be the buzzword in the food and beverage industry, bartender and "zero-waste" pioneer Ryan Chetiyawardana, or Mr Lyan as he is better known, notes that there is a bit of "greenwashing" going on.

"But I liken it to charity a little bit. I would love everyone to have ethical motivations… but the reality is some people do it for a tax break or whatever it is," says Mr Chetiyawardana, speaking to The Straits Times.

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