How It's Made

Season 8 Episode 7: CO2 Cartridges, Pretzels, Scissor Lifts, Skating Rinks

Small steel cylinders are formed, tested and filled with compressed carbon dioxide, shaped dough is boiled and baked into pretzels, hydraulic systems and crossed supports are assembled into scissor lifts, and layered refrigeration systems create and maintain artificial skating-rink ice.

Genre:

Documentary

Seasons:

32

Episodes:

416

Cast:

Lynne Adams

Quality:

HD

Duration:

21 min

First Air:

2001

Rating:

7.7