Hong Kong is experiencing a pressing need for food waste management. Currently, approximately 3600
tonnes of food waste are disposed of at landfills in Hong Kong daily. The landfills in Hong Kong are
expected to be exhausted by 2020. In the long run, unavoidable food waste should be sorted out from
the other municipal solid waste (MSW) and then valorized into valuable resources. A simple sorting process
involving less behavioural change of residents is, therefore, of paramount importance in order to
encourage residents to sort the food waste from other MSW.