The Waste and Resources Action Programme (Wrap) said collaborative action on food waste is "essential" if it is to be successfully reduced.
Wrap director Richard Swannell said: "We welcome Tesco's approach to tackling food waste across their whole supply chain, and by identifying the hot spots they can tackle these areas effectively.
"Food waste is a global issue and collaborative action is essential if we are to successfully reduce food waste and reap the financial and environmental benefits of doing so."
Figures released by Tesco show a shocking level of waste across its supply chain, with lessons for consumers as well as supermarkets.
From storing apples in the fridge to rejuvenating stale bread, there are many easy ways to reduce food waste in your home.