Non-GMO. Opal apples are Non-GMO Project verified. They are the first U.S. apple variety to be verified by the Non-GMO Project, the only independent verification in North America for non-GMO food.

The brand was introduced by Mars in the UK in 1960, named Opal Fruits by Peter Phillips (known as Peter Pfeffer at the time), the winner of a competition that won him 5. Produced at their factory in Slough, Berkshire, the four original flavours were strawberry, lemon, orange and lime.