How to store
A ripe, yellow pitahaya can be kept in the refrigerator for a few days, but best is to eat it as soon as possible. You can ripen a pitahaya that is still green at room temperature.
How to eat
Spoon the pulp from the skin with a spoon. Then cut the decorative pulp into cubes or slices. Or use a melon scoop to make nice balls. You can of course also eat the pulp straight from the skin, as you would do with a kiwi.