Jam, Jelly, Preserves; what’s the difference?

Jelly is made from sweetened fruit or vegetable juice.  The process of making jelly includes filtering any fruit out of the juice, so the end result is a clear spread.

Jam contains cut or crushed fruit, of even consistency, in a semi-jelled spread.  Jam should be of a semi-smooth consistency

Preserves contain whole or larger chunks of fruit in a jelled spread that is thicker than preserves, but not quite jelly.

To add to the confusion, jam and preserves are often used interchangeably.  Whatever the name, the taste is usually the same.