Breed-your-own insect 'revolution' for the kitchen

A seething mass of larvae in the kitchen is not everyone's cup of tea, particularly for squeamish Westerners. But for two young Austrian entrepreneurs, it's a food revolution that can help save the planet.

Katharina Unger and Julia Kaisinger, 25 and 28, have developed a device to breed in the comfort of your own home the protein-rich grubs of the meal beetle, to then eat.

"With this current design you can make 200-500 grams of mealworms every week," Unger says at a tasting and fundraising event in Vienna.