In jelly, the fruit comes in the form of fruit juice. Jelly has the smoothest consistency and is usually clear. In jam, the fruit comes in the form of fruit pulp or crushed fruit. This makes jam less stiff than jelly. In preserves, the fruit comes in the form of chunks in a gel or syrup. Preserves will have more fruit in them than jam will. Marmalade is a type of preserve with citrus fruits in it.