Tasmanian potato farmers and owners of Pyengana's Anchor Organics Terrence and Wendy Rattray have launched their Purple Bliss and Red Foo potatoes on a national stage.

The Rattrays have exclusive rights to the potatoes, which have been on sale in Coles stores across Australia since last week.

After starting out as a purely organic operation in 1995, Anchor Organics moved into the conventional potato market three years later with Kipfler and Dutch Cream varieties.

The popularity of those potatoes among other growers led the Rattrays to scour the globe for new varieties to which they could have exclusive rights, and that led to the discovery of the Purple Bliss and Red Foo varieties.

"These are some of the more interesting ones we've found," Mr Rattray said.

"The Purple Bliss is better than most other eating potatoes, they're a really great all purpose potato.

"They hold their shape really well, you can use them in a stew or a casserole, they stay nice and firm if you want to use them for potato salad."

Mr Rattray said the Red Foo potato was less versatile than the Purple Bliss, but was great for salads.

Coles fresh produce general manager Brad Gorman said Coles was excited to help growers such as Anchor Organics innovate and try something new for their customers.

"This is the first time Australians nationwide will have the chance to try these special potato varieties from Tassie and we think they could even become a star on kids' dinner plates, making vegies a bit more fun," he said.

The University of New South Wales is conducting research into the effects of purple potatoes on gut disorders.

Anchor Organics has recently moved its packing operations from Pyengana to East Devonport, to cut down on freight lead times.