Featured Kingston, Ont. brewery harnessing carbon capture technology - Kingston

Published on January 25th, 2023 📆 | 6018 Views ⚑

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Kingston, Ont. brewery harnessing carbon capture technology – Kingston


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The Mackinnon Brothers Brewing Company, just outside Bath, Ont., is a local staple for people looking to grab a craft beer.

The company prides itself on being environmentally friendly including growing many of its own ingredients on the family farm.

The newest addition to the operation is a piece of equipment that will help the brewery reduce its carbon footprint.

β€œNow we’re capturing all the CO2 from our fermentation processes, condensing it and being able to reuse it in the brewery,” said brewmaster Dan Mackinnon.

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Mackinnon says when beer ferments yeast turns natural sugars into alcohol and CO2. The alcohol stays in the beer, and the CO2 is usually vented into the air.

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The new equipment captures the CO2 and pressurizes it. It is then put back into the beer later in the process, creating the white foamy head beer is known for.


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Queen’s University chemistry professor Dr. Philip Jessop calls the technology a stroke of genius.

β€œI absolutely think we should be capturing the CO2 from the beer fermentation,” said Jessop. β€œThat’s going to reduce the amount of CO2 going into the atmosphere and because it’s pretty pure CO2 coming off.”

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In the long run, the technology is also a cost saver for the brewery.

Normally a brewery buys CO2 to carbonate the beer but Mackinnon brewery no longer needs to.

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β€œWe’re able to capture about 500 pounds from each of our large batches, so every time we ferment a big batch of beer we’re able to save a decent amount of money,” said Mackinnon.

To date, the Mackinnon Brothers say they are the only known craft brewery in Ontario using this green technology.

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