Wise up on Waste is the name of a new mobile app from Unilever that was launched recently to assist professional restaurant and catering kitchens to monitor and track their food waste.

The authors of this study looked at the impact of measures introduced by Scandinavia’s largest hotel chain to reduce food waste.  Plate sizes were reduced while signs were also posted encouraging customers to help themselves to food more than once (ie. signalling that they didn’t have to overload their plates the first time because they could always come back for more): the effect of these measures in combination was a 20% reduction in food waste.