"Supermarkets go off what's left on the shelves, so if you're rummaging through cauliflowers or broccolis or apples and picking out certain ones, the data shows they sell those certain ones, and then that makes the spec,"she said.
"They'd say things like 'Why would you buy that? We've been told for 40 years this is rubbish, literally, or we should just put it in a paddock and let it break down',"he said.