The open fermentation tanks are still in use today.

Soon they would think to destroy the fermentation tank.

A type of yeast is selected and added, or "pitched", to the fermentation tank.

To make certain types of wine, grapes are put through a crusher and then poured into open fermentation tanks.

"It's probably going be like the world's biggest fermentation tank," he said.

Half the building was open from the first floor to the ceiling, and in that huge chamber there were enormous three-story fermentation tanks.

The seeds are then soaked in a fermentation tank to remove the outside layers.

When these grapes are pressed quickly, only the concentrated juice makes its way into the fermentation tanks.

In the case of all the other varieties, the must and skins go into the fermentation tanks together.

In the distance the building that held the fermentation tanks loomed in the darkness.