The process requires pupils to add different layers of sawdust to their food waste, wait two weeks for it to ferment, and mix it with soil for a month. Photo: Zoe Law

A matter of waste: the Hong Kong pupils making compost from their leftovers

School in Tuen Mun among 17 in city sending environmental ambassadors to classes after lunchtime to gather up – rather than throw away – uneaten food

Topic |   City Weekend

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The process requires pupils to add different layers of sawdust to their food waste, wait two weeks for it to ferment, and mix it with soil for a month. Photo: Zoe Law
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