305: Matthias Trum of Schlenkerla Isn't Preserving the Ashes, He's Keeping the Rauchbier Fire Burning
Craft Beer & Brewing Magazine Podcast
The History of the Smoke Free Kiln
On 23 July 1635, a certain Nicholas Haltz from Cornwall received the first patent for a non-smoke kiln. The background was why he made that invention. England had a wood supply problem. They were dependent on energy imports from the east. So they wanted to become independent of that.
Matthias Trum is the sixth-generation brewer at Bamberg’s Heller-Trum Bräu—better known as Schlenkerla—and he is as obsessed with local history as he is with producing world-class smoked lagers via their old-fashioned methods.
Bamberg has a long history of brewing, and Trum is a great student of that history—and his family has played an important role in it. In this episode, he immerses us in that story, discussing:
- old family brewing logs that detail strong beers as well as lower-strength ones made from second runnings
- the true story of rauchbier, and Schlenkerla’s role in preserving its legacy
- details on Schlenkerla’s own wood-fired malting process, and the old practice of using different types of wood
- the non-linear intensity of the smoky character in Schlenkerla’s beers
- the importance of decoction to fermentation and flavor
- the flavor contribution of their direct-fire copper kettles
- the trick of balancing smoke and malt with evident hop bitterness
- experimenting with malts smoked by different woods and paired with different aroma hops
- balancing the non-smoked yet subtly smoky Helles Lagerbier
- how hyper-inflation led to the development of the Helles
And more.
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