Clibit

Climate change is putting one of the world’s oldest beer varieties at risk, environmental scientists and one of Belgium’s leading artisan brewers have said.

A study into temperatures in Brussels and the Pajottenland region south-west of the Belgian capital has raised doubts over the future of the sour lambic beer produced exclusively in the region.

Lambic is fermented in the open air through exposure to wild yeasts and airborne native bacteria. It relies on night-time temperatures of between -8C and 8C (18F-46F) for cooling and inoculation.

The traditional brewing season runs from October to April, with bezomerd – Brussels dialect for a beer that has had “too much summer” – a possibility if it is produced any later.

A joint project between the climate scientists Mark and Asa Stone and the Brussels brewery Cantillon found this limited brewing window has shortened from 165 days in the early 1900s to about 140, as temperatures have pushed it later into the autumn and brought the season prematurely to an end in early spring.

It is feared the number of brewing days will shrink further, bringing the risk of a similar disaster to 2015, when beer had to be thrown away due to excessive temperatures.

Cantillon, which produces 400,000 bottles of the sour beer a year, has warned its ability to produce the beer could be under threat in the long term.

Jean Van Roy, Cantillon’s owner, told the Brussels Beer City blog that he believed if he artificially cooled the wort – a liquid extracted during the mashing process – it would change the taste of the beer.

“If tomorrow I would have this problem every season, financially it could be a bit difficult, so we would have to change something,” he said.

“[But] I would hate to do that … Or we move the brewery to go up north to begin to brew in Denmark, in Sweden, I don’t know.”


https://www.theguardian.com/world/2018/sep/10/belgium-sour-lambic-beer-climate-change-risk
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GHW
Maybe a changed climate will allow new types of beer to be brewed?
Two sides to every coin!
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Clibit
GHW wrote:
Maybe a changed climate will allow new types of beer to be brewed?
Two sides to every coin!


Maybe the lambic breweries will move north. To Scotland! I had to laugh when I read this cos the guy I used to know who set up Chorlton Brewing is currently crowdfunding to start a lambic brewery in Brussels! Presumably to move his operation there. He may have to think again.
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