Whisper bio bag, the basic primer
Later, more cartons were launched such as the tetrawedge which was wedge shaped and tetraprisma which was round octagonal and then there was the tetrafino which was a pouch shaped packaging. Some other tetra bio bags include tetrarex(gable top), tetratop(paper and plastic moulded in one) and the now discontinued tetraking. Recently, tetra bio bags have been introduced for vegetables opposing the tin culture. Tetrarecart are the new tetra bio bags and are laminated paper boxes that allow for more subtle reprocessing of vegetables than canning permits. Cartons called tetraprisma Aspetic packages with re closable screw caps are being used by wineries to sell five hundred milliliters and one liter boxes.