And now Andy Gulliver is backing recycled organic waste as a solution to help rebuild drought-ravaged farms.

"We know how important the stomach and gut are to human health, so how about thinking of the soil and how the inputs you put into the soil drive the health of that soil, which then drives productivity in soil, and gives you resilience and profitability in farming," he said.

Mr Gulliver, a co-founder of C-Wise which transforms organic carbon into compost, said it provided long-term cost benefits and made harvesting more economical.

Organic waste like animal manure, stubble, wasted hay and dairy waste - which often sit idle in a pile on farms, can transform into compost and replenish the soil.

More carbon in the soil means more water retention, which helps protect crops and pasture during a drought.

The other key ingredient to make it happen is oxygen.

"It can consume all of the oxygen is a few hours. If you want to make the best compost in the world you have to feed the bugs with oxygen and aerating compost allows us to do that cost effectively," Mr Gulliver said.

"In the mushroom industry we developed sophisticated closed aerated systems in the 1970s and 1980s. In the early 1990s Australia was a world leader in some of that research.

"We've been doing this for 20 years, we just didn't know it was called regenerative agriculture.

"Anyone can pile up the material and call it compost, but if you want to make it functional, you have to control the process."

This isn't solely something for farming though. Home gardens, community gardens and council parks and gardens are some of the other avenues that can benefit from this approach.

In fact, Mr Gulliver said communities could use compost to re-use their organic waste including food scraps.

"We've got to be thinking about that carbon cycle, for example in nature the fruit would have fallen onto the ground and improved the microbiology of the soil and that carbon would have had a useful use," he said.