So does PU use a different yeast for the wood fermented beer?
All I know is the wood open air ferment barrels is the original method and the recipe is their original recipe.
That is what they told us when we toured the brewery.
And it’s a beer brewed exclusively for the guests of the brewery.
why would they make the recipe different? you mean they have a different grist and hop schedule for this "special" PU?
We toured the Pilsner Urquell brewery a few years ago. At the very end of the tour, we each received a glass of non-filtered, non-pasteurized beer. This was beer that was fermented in the open air wood barrels, that we passed by during part of the tour.
It is their original recipe. And it is the original brewing method that was employed by the brewery decades ago.
That is all I know. If you want more info on the matter, perhaps contacting the brewery would be of help.
Here is an actual photo of the open air wood barrel fermenter. I thought they were just "props", but the brewery guide explained the whole story to us.