How It's Made — Season 21

Episodes

• E1 Rubber Gloves, Soap Carvings, Aircraft Cabinets, Motorcycle Brake Locks2013-04-0410.0
• E2 Powder Horns, Handcrafted Molds, Pierogi, Inner Tubes2013-04-1110.0
• E3 Lace, Antique Frame Replicas, Orchids, Unicycle Wheel Hubs2013-04-188.5
• E4 External Hard Drives, Frozen Shrimp, Thai Rice Boxes, Paper Towels2013-04-2510.0
• E5 Tea, Roof Finials, Artificial Flowers, Alloy Wheels2013-05-0210.0
• E6 Gel Caps, Playground Spring Riders, Frozen Pancakes, Natural Rubber2013-05-0910.0
• E7 Paper Umbrellas, Coal, Aircraft Seats, Cremation Urns2013-05-1610.0
• E8 Aluminum Canoes, Wooden Stave Bowls, Wheelchair Accessible Vans, Marimbas2013-05-2310.0
• E9 Indy Car Seats, Paper Flowers, Stand-by Generators2013-06-2010.0
• E10 Customized Knee Replacements, Leaf Springs, Lavender Essential Oil, Rivets and Rivet Tools2013-07-0910.0
• E11 Cast Iron Stoves, Ultralight Aircraft, Snow Groomers, Rubber Bands2013-07-1810.0
• E12 Barber Chairs, Sewage Pumps, Bimini Boat Tops, Diesel Filters2013-07-25—
• E13 Car Tires, Silk, Art Conservation, Scuba Tanks2013-08-0110.0