It sounds like a romantic Christmas occupation, but in reality it is a brutal business: the Christmas tree trade. Around 30 million trees are sold in Germany each year, with sales amounting to 700 million euros.
The customers have high demands. The mass-produced trees have to be just perfect: straight, lush green and almost "needle-free". But how is this achieved? And where do our Christmas trees come from?
"Oh Tannenbaum: The Big Christmas Business" goes in search of the dark secrets lurking behind our Christmas trees.