Season 23 Episodes13
Cast1

Lynne Adams
Narrator (voice)
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Ranked #3 of 13 in Season 23•+0.2 vs season avg
Sound-absorbing materials are formed into roadside panels designed to reduce traffic noise. Drums, motors, pumps and electronic controls are installed in front-loading washing machines; fermented grain mash is distilled and aged in charred barrels to produce bourbon; and conductive pathways are formed on thin flexible

Lynne Adams
Narrator (voice)
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"Noise Barrier Walls, Front-Load Washers, Bourbon, Flexible Circuit Boards" is episode 3 of How It's Made season 23. It scored 7.4/10 from 19 votes, ranking #3 of 13 episodes this season (season average 7.2). It aired on April 17, 2014.