For the purposes of section 106A (c) of the Act, food is prepackaged if the food--
(a) arrives at the premises from which it is sold in a container or wrapper in or by which the food is wholly encased, enclosed, contained or packaged (whether or not the food is also in an outer container or wrapper that encases, encloses, contains or packages multiple units of the food), and
(b) is not removed from its container or wrapper (other than any such outer container or wrapper) before its sale at those premises.