Mr Reucassel, who was in Orange on Sunday to talk at the Sustainable Living Expo, said people should stop putting food waste in the red bin and instead put it in the green recycling bin.

"Food waste in our landfill is a huge environmental negative and luckily the Orange area has food recycling in their green bins which is brilliant," he said.

"There is still a lot of organics ending up in the landfill bin but getting that into the green bin makes a massive difference.

"Food waste in landfill is a massive creator of methane and greenhouse gases so you need to get it out of there. It's also going to prolong the life of your landfill because it's such a huge part of your bin."

Environmental consultant Chris Dart revealed at the expo an assessment of rubbish collected in Orange had shown only 14 per cent of food waste was in the right bin.

Mr Dart said 52 per cent of the waste found in the red bin was food and recyclable items that should be in the green or yellow bins.

Mr Reucassel gave several talks and took questions from the crowd.

"I love taking questions as part of it. You find out where people are really struggling with things," he said.

"Plastic is such a hard one, people are trying to get reduce it in their lives but it is so ubiquitous."

Mr Reucassel said he was not a recycling expert when he started the TV show but it was an interest.

"I was probably more focussed on some other environmental issues to be honest and the ABC spoke to me and said 'are you interested in waste' and I was, but I wasn't an expert by any means," he said.

"I wanted to cover some stuff in some of the other shows we did but they just didn't fit in.

"Instant landfill, the kind of products that are shipped across the world, an enormous amount of energy that goes into making them, you buy them for six bucks and they break down and they go straight into landfill, but it never kind of fitted into the shows we were doing."

He said consumers were changed their recycling habits and that was leading to government policy following them.

Expo organiser for the Rotary Club of Orange John Mills said the Sunday markets event had been well attended with about 200 people listening to one session delivered by Mr Reucassel.

The expo was accompanied by sustainability and Rotary's regular markets.

Mr Mills said it helped spread the sustainability message.

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