They have thick, waxy, translucent yellow skin with dark reddish-orange flushes.
Inside, they have tender, yellowish-white flesh is crisp and juicy. The flavour is reminiscent of pear.
The tree is a reliable bearer. The apples ripen in mid-September, and mature over a period of several weeks.
Jefferis Apples originated, reputedly, in Chester County, Pennsylvania in the 1840s from a chance seedling on a farm belonging to an Isaac Jefferis.
The apple was recognized in 1848 at a Pennsylvania Horticultural Society show as the best seedling apple in the show.