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It was a great day when our wine barrels arrived. We scouted around a number of vineyards in France before we found one that had 5 seasons old and available barrels that suited our needs, these barrels have been used for making red wine and they definitely have some yeast/bacteria flora of their own. We started right away with cleaning them and made a suitable beer to fill them with. We already had the yeast delivered.
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This is our first real attempt of fermenting beer in oak barrels with a mixture of bacteria and wild yeast, we had made a few small scale trials to select the most suitable wild yeast combination, but this was the first real thing.
We first fermented the beer with one of our regular house yeasts, after 3-4 days we moved the beer to the oak barrels and introduced the yeast/bacteria mix. This will slowly eat a lot of fermentables that our regular yeast cant handle. This process has now been going on for 12 months and its time for us to read the gravity and decide if the beer is ready for bottling. Before bottling all the barrels has to be tasted and most likely be blended for the best flavor. The barrels are sweating approx 10% and this is free beer for the angels, they will hopefully in return watch over the process. This is most likely the first attempt on making this kind of beer in Scandinavia for a couple of hundred years. The beer will taste something between a Flandern red and a Lambic.
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This shows a so called Pellical on top of a fermenting beer, this is from the fermentation with wild yeast and lactic acid. It protects the beer from the air/oxygen.
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