Apparatus and methods reduce increase the common mode range of a difference amplifier. The beverage compositions may be provided in a ready-to-drink form or may be provided in a concentrate form. The novel method may further transmit the digital data. The resulting dough may be formed into a high-pressure sheets, for use as gasketing material, using a two-roll sheeter machine, or the like. One end of the seal-retaining member tightly contacts an end surface of the expanded diameter section.