Just like traits such as eye or hair colour pass down from generation to generation in people, certain features on potatoes are inherited from their parent varieties. For Kestrels, the purple blush comes from their Irish parent, the Cara potato.

The purple skin marks are formed naturally by antioxidants called anthocyanin, which are also found in the ‘super food’ blueberries.

The purple spots are completely natural and perfectly safe to eat – and they’re a big part of what makes Kestrels so recognisable.