Season 18 Episodes13
Cast1

Lynne Adams
Narrator (voice)
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Ranked #8 of 13 in Season 18•matches the season avg
Soft fibres are trapped between twisting wires to produce flexible pipe cleaners. Cultured milk is coagulated, drained and pierced so the characteristic blue mould can develop in Stilton cheese; electronic measuring components are calibrated inside smart electric meters; and precisely shaped lenses or mirrors are

Lynne Adams
Narrator (voice)
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"Pipe Cleaners, Blue Stilton Cheese, Smart Electric Meters, Telescopes" is episode 6 of How It's Made season 18. It scored 7.1/10 from 18 votes, ranking #8 of 13 episodes this season (season average 7.1). It aired on October 18, 2011.