Complex sentence: Some cultivars, such as Fuyu, do not contain tannins when firm, and can be eaten like an apple, or can be allowed to go to any stage of ripeness, including to the jelly-like stage.
Split into simpler sentences: Some cultivars, such as Fuyu, do not contain tannins when firm. They can be eaten like an apple or can be allowed to go to any stage of ripeness, including to the jelly-like stage.