Blenheim schoolboys learning the craft of viticulture at New Zealand Wine School

Five Blenheim high school students are taking part in a new program all about the wine industry - before they're legally allowed to drink.

In a first, the New Zealand Wine School is teaching the teenagers, from Marlborough Boys College, all about the tricks of the trade, from winemaking to machinery operation, Stuff reports.

Unlike a typical school curriculum, the program had the class spending the year making three different wines and was largely self-directed.

"They all prefer it, the mix, and it's easy for them to tag onto other classes because there's only five of them," teacher Rebecca Kane said.

The "school within a school" is sponsored by several institutions in the Marlborough wine industry. 

FIle image of two glasses of white wine.