Season 11 Episodes19
Cast2

Rupert Degas

Robert Llewellyn
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Ranked #18 of 18 in Season 11•−0.2 vs season avg
A look at how to make parmesan cheese, and the key to keeping the runways running at the world's busiest airports. Plus, a look at manufacturing reclining chairs

Rupert Degas

Robert Llewellyn
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"Parmesan, Runways, Reclining Chairs" is episode 1 of How Do They Do It? season 11. It scored 6.9/10 from 12 votes, ranking #18 of 18 episodes this season (season average 7.1). It aired on May 15, 2014.