How Do They Do It?

4:30 AM to 5:00 AM

Sunday 30 June

Helmets/Tea/District Heating

Season 14 Episode 4 of 20

A look at how the world's most expensive tea is harvested and treated. Plus, how the Siekierki power plant of Warsaw, Poland, manages to heat half the city's homes

How Do They Do It? airs on Discovery Channel at 4:30 AM, Sunday 30 June. (Subtitles.)

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