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08 December 2020 | Story Leonie Bolleurs | Photo Supplied
At the BJCP beer judging competition, Dr Errol Cason won Best of Show with his Belgian Saison. Here he is presenting at the AfricaBrew2020 Brewing conference.

Staff and students from the University of the Free State (UFS) once again proved their skills in beer homebrewing when they walked away with one first place and two second places at the 13th annual Anheuser-Busch Inbev (AB-Inbev) – formally South African Breweries (SAB) – intervarsity beer brewing and tasting competition, and the Beer Judging Certification Programme (BJCP) competition held at the AfricaBrew2020 Brewing conference. Both these events took place over the weekend of 27 and 28 November 2020.

Evil Twin Double and Three Sips German 

Competing in the AB-Inbev/SAB Intervarsity brewing and tasting competition, was a group of students from the UFS Department of Microbial, Biochemical and Food Biotechnology, consisting of Eduvan Bischoff (PhD student), Elzette van der Walt (MSc student), Culien van der Merwe (MSc student), Gunther Staats (MSc student), and Twyne Skein (MSc student). This team came second in both the Indian Pale Ale (IPA) category with their Evil Twin Double IPA and in the Lager category with their Three Sips German Pils. 

“This is an outstanding accomplishment. Congratulations also go to our fellow Free Stater’s at the Central University of Technology (CUT) for winning the India Pale Ale (IPA) category as well as best overall beer with their New England IPA,” commented Dr Errol Cason, Senior Lecturer in the UFS Department of Animal Science, also representing the liquid yeast company LiquidCulture Yeast.

According to Dr Cason, this SAB-sponsored competition sees students from local universities brew and enter beers for judging, and competing for prizes, including the coveted ‘Best of Show’ trophy. 

“This event also aims to promote beer culture along with responsible drinking, by hosting talks by industry experts where students can interact with commercial brewers, scientists, and marketers,” says Dr Cason. 

The event was hosted by South African Breweries (SAB) and CUT, through the Centre for Applied Food Sustainability and Biotechnology (CAFSaB), in association with the UFS. 

Although the event was moved online in 2020 due to the international pandemic, it did not mean that there was a decline in the quality of presentations, or in the beer entered by universities. – D r Errol Cason

Dr Cason explains that entrants are usually challenged to brew beers according to the 2015 Beer Judge Certification Programme (BJCP) guidelines in lager, IPA, winter warmer, and fruit beer categories. 

“This year included the African Premium Ale and Lockdown Brew categories as well, where teams were mostly left to invent and experiment on their own with a few rules, such as using only indigenous African ingredients or ingredients that were available in supermarkets during lockdown,” says Dr Cason. 

There is also an award for the best bottle dress (label). 

Dr Cason believes that although the event was moved online in 2020 due to the international pandemic, it did not mean that there was a decline in the quality of presentations, or in the beer entered by universities. 

Belgian Saison and Extra Special Bitter

He and Christopher Rothmann, who is busy with a PhD in Biotechnology at the UFS and is co-founder of the company LiquidCulture (LC) Yeast, attended and presented at the AfricaBrew2020 Brewing conference. AfricaBrew is an annual brewing conference specialising in workshops and demonstrations for home and professional brewers. 

Accompanying the conference is a BJCP beer judging competition where all home and professional brewers can enter beers. During this competition, Dr Cason won Best of Show with his Belgian Saison. Rothmann came second with his Extra Special Bitter.

Since LiquidCulture Yeast was found in 2018, this commercial venture has since spun out and are now providing liquid brewing yeast to the homebrewing and commercial brewing industry. Rothmann and Dr Cason are also founding members of the Kovsie Brewery (along with Dr Jan-G Vermeulen and Eduan Hellmuth), which is currently being constructed on the UFS Paradys Experimental Farm facility.

News Archive

UFS venture cleans up acid mine drainage
2015-07-06

The system that puts oxygen back into the water.

Photo: Supplied

South Africa is one of the most important mining countries in the world, beginning in the 1870s. Although the mining industry has been responsible for significant development and employment, it pollutes the environment and waters sources. Through the joint effort of a well-known mining company, the University of the Free State, and the Technology Innovation Agency (UFS/TIA) SAENSE Group, a new treatment for Acid Mine Drainage (AMD) has been developed.

The system treats the major contaminants found in acid mining wastewater effectively.  
 
The UFS remediation systems use a reservoir tank into which the AMD is pumped. The water then flows passively (without using energy) to the Barium Carbonate Dispersed Alkaline Substrate (BDAS) system. The metals and anions in the AMD react chemically with the barium carbonate and precipitate (form solids). The solids stay in the tank while the clean water is released.

The efficacy and applicability of the research was demonstrated on site in Belfast, Mpumalanga where the team constructed a pilot plant in July 2014. This patented technology has treated 1 814 400 litres of Acid Mine Drainage to date with an outflow water quality that satisfies the South African National Standards (SANS) 241:2006 & 2011 regulations for drinking water.   

Rohan Posthumus from the (UFS/TIA) SAENSE Group said: “At this stage, we do not recommend that the water should be used as drinking water, but certainly it can lower water usage in mines while finding application in dust suppression of washing processes. The team would like to complete a full characterisation of the final released water. There are currently no toxic by-products formed, and even very basic filtration can make the outflow drinking water.”

Prof Esta van Heerden’s research group from the Department of Microbial, Biochemical, and Food Biotechnology has been working on AMD research for some time, but the development of the BDAS system was started in 2013 by post-doctoral student, Dr Julio Castillo, and his junior researcher, Rohan Posthumus.

The data from the BDAS system have led to two publications in peer-reviewed journals as well as a registered patent.

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