Making craft brewing sustainable


DEYA Brewing

Emissions tCO2e






Year formed


Emissions tCO2e


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Who is DEYA?

DEYA was born in Cheltenham after Theo Freyne, its founder, was inspired to make hoppy beers, lagers and ales, initially selling them to customers on-site. The young company has completely boomed in recent years — because the beer isn't half bad — with a brewery holding a unique house style of soft, juicy and extremely hoppy beer.

It's safe to say Theo's idea has been a broiling success, so much so that DEYA's flagship beer, Steady Rolling Man, was rated the best pale in the UK on Untappd in 2016, just a year after opening its doors.

The Problem

Naturally, breweries aren’t exactly angels when it comes to the carbon footprint they leave behind on a daily basis, and the team at DEYA knows this. Big hydrometers, pumps, valves, heat exchangers and filtration systems, combine to create emissions we'd rather ignore while savouring a cold one.

As a young company that cared about their impact on the planet, DEYA wanted to put in place the systems to start measuring and tracking their greenhouse gas emissions.

How Zevero Helped

Zevero helped DEYA measure both their corporate and product footprint, taking into account everything from the water used to grow the barley, to the materials in the final packaging, without forgetting the waste from beer production along the way.

The Outcome and Reducing Emissions

By getting a detailed audit of their emissions, DEYA was able to pinpoint exactly where its hotspots were and take action to mitigate those areas.

After a year-long assessment of DEYA’s operations, Zevero also helped to identify any greenhouse gas emission hot spots. By pinpointing specific problem areas, we provided DEYA with ways they could lower their carbon emissions. For example, if they sourced completely organic malt from the UK, they could reduce their emissions by around 0.09kgCO2/kg malt. Over the course of a year, this would decrease emissions by a total of 16.1 tCO2e/year at current production rates.

Smaller changes include encouraging employees to walk or cycle to work, using 100% recycled printer paper and publishing monthly newsletters with the latest company emission stats to keep up awareness. On a wider scale, the company is now completely powered by hydro and wind energy. It has also become a Zero to Landfill company, meaning that no waste ever ends up in the landfill and whatever can't be recycled is instead incinerated to generate energy.

DEYA have now been featured on BBC news for their work as well as becoming a leading voice in the industry for sustainability in craft brewing.