Table II.

The decision matrix used to define the use of food preservation to reduce consumer food waste

Defining issues	Intervention issues identified by alternate and specific terms	Qualifier and outcome identifiers
Is frozen or freezing suitable for the food	Is the food material is suitable? Is the frozen market realistic (requiring market research)? Continuity of supply is required (e.g. to allow eating out-of-season)	LCA metrics can be used to improve the communication of environmental impact (e.g. the Carbon Footprint of a product)
How do you know it will reduce food waste	There is a fresh equivalent Current volumes of food waste need to be reduced Supply format provides convenience	There is currently a lack of tools to provide consumer advice. The research presented here helps to identify the benefits of preserving foods by freezing
How are consumption trends identified	Consumers must be familiar with product format. They may not typically use frozen formats	Peer review research studies must be used
How do we change behaviours when more sustainable ones are identified	Feedback from consumers will determine efficacy of using freezing as a preservation method	There is currently a lack of tools to provide consumer guidance A need for more robust methods to demonstrate specific food preparations can result in less waste