Before every batch, 1500 kg malt is opened and sieved, and dirt and stones are removed by blowing air in from underneath. The malt is collected and allowed to fall to Floor 5.
gravity distillery - floor by floor
The first environmentally-friendly distillery in the world.
The eco-friendly Gravity Distillery in Mackmyra Whisky Village was completed in 2011, becoming the company’s second full-scale distillery. At the back of the distillery are two large silos each filled with around 40 tonnes of malt – one holding Mackmyra’s smoked malt and one containing unsmoked malt. The first phase of production sees the malt raised to the top of the 35-metre tall distillery. Harnessing the force of gravity between the different phases of production, the ingredients are then transported downwards, undergoing a new phase on each level. During five stages, malted barley, yeast and water are processed into a finished new make spirit.
THE PROCESS - FLOOR BY FLOOR
FLOORS 7 & 6 – CLEANING AND SIEVING
FLOOR 5 – ROLLER MILL
After sieving, the malt is milled in a roller mill in for different milling grades: fine malt, medium-milled, semi-coarse and coarse. After the stage the milled malt falls to into milled-malt pockets.
FLOOR 4 – MASH TUN
FLOOR 3 – FERMENTATION ROOM
FLOOR 2 – DISTILLATION
Now finally, it is time to get really involved. The first runnings from distillation are called foreshots (or heads) and consist mostly of highly volatile, unusable alcohol and impurities. This is fed back into the intermediate tank. Then comes “the heart” – the part of the distillation that is used to fill the casks. The heart is collected in a separate tank called “the middle tank”.