A far north Queensland farmer, who turns waste bananas into flour, skincare and cosmetics, has struck an international deal that will see his business expand globally.

Rob Watkins got into the banana industry more than 15 years ago, growing ladyfinger bananas, and soon realised the large amount of product not suitable for supermarkets.

Natural Evolution Foods founder Rob Watkins enjoying some down time on his banana farm. Credit:Natural Evolution Foods / Instagram

"If you are doing a high quality job, you might throw out 12 to 15 per cent of your crop because they are out of shape, marks on the skin, damaged on the skin but inside they are still perfect," he said.

"Sometimes in the year you might chuck out 40 per cent because the market is over-supplied.