Shoppers expecting their tomatoes to be red could be in for a shock with the arrival of the first black tomatoes in Sainsbury.
Ancient variety Kumato has a distinctive sweet taste and is being trialled in five Sainsburys.
The retailer worked with growers in the Galapagos to develop the fruit.
Tristan Kitchener, tomato buyer, said: “Consumer response to the new variety has been extremely positive in trials. We’ve found a variety delivering an all-round superb flavour and an eye catching colour.”