Editing Potato chips (section)

=== Packaging ===

Chips sold in markets were usually sold in tins or scooped out of storefront glass bins and delivered by horse and wagon. Early potato chip bags were [[wax paper]] with the ends ironed or stapled together. At first, potato chips were packaged in barrels or tins, which left chips at the bottom stale and crumbled.

In the 1920s, [[Laura Scudder]],<ref name="Scudder's'"/><ref name="Hudson"/><ref name="La Ganga"/> an entrepreneur in [[Monterey Park, California]], started having her workers take home sheets of wax paper to iron into the form of bags, which were filled with chips at her factory the next day. This pioneering method reduced crumbling and kept the chips fresh and crisp longer. This innovation, along with the invention of [[cellophane]], allowed potato chips to become a [[Mass marketing#Use and products sold|mass-market product]]. Today, chips are packaged in plastic bags, with nitrogen gas blown in prior to sealing to lengthen shelf life, and provide protection against crushing.<ref name="cup.edu"/><ref name="Singh"/><ref>{{cite journal | title = Effect of nitrogen flushing on shelf-life of packaged potato chips | doi = 10.1002/pts.2770070205 | author1 = James S. Paik | author2 = Jae Ik Shint | author3 = Ji Iii Kimt | author4 = Pung Kil Choit | journal = Packag. Technol. Sci. | volume = 7 | pages = 81–85 | year = 1994| issue = 2  | issn=0894-3214}}</ref><ref>{{cite journal | title = Packaging design for potato chips | doi = 10.1016/S0260-8774(00)00118-7 | author = M.A. Del Nobile | journal = Journal of Food Engineering | volume = 47 | issue = 3 | pages = 211–215 | year = 2001}}</ref>