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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

Discovery in Scorpius constellation may signify clean energy for Earth
2017-01-23

 Description: Discovery in Scorpius constellation may signify clean energy for Earth Tags: Discovery in Scorpius constellation may signify clean energy for Earth

Earlier this year, a group of international astronomers
announced the discovery of an exotic binary star system,
AR Scorpii. The system is in the Scorpius constellation.
Photos: Supplied

See article on Nature’s website 

In future, stargazers and astronomers will look at the Scorpius constellation near the Milky Way with new eyes. Earlier this year, a group of international astronomers announced the discovery of an exotic binary star system, AR Scorpii. The system is in the Scorpius constellation.

Prof Pieter Meintjes, researcher in the Department of Physics at the University of the Free State (UFS), worked with four colleagues on what he describes as a “wonderful discovery”. This sensational discovery, which could lead to the production of cleaner energy on Earth, will be published in the research journal, Nature, early in 2017.

Model developed to interpret new set of measurements
The exotic binary star which was discovered consists of a red dwarf and a white dwarf revolving around each other every 3,5 hours. The binary system showed very prominent pulsations of 117 and 118 seconds respectively. The pulsations can be explained by a bundle radiation produced by the white dwarf star.

“These new observations have shown that the radiation is strongly polarised, a sign that we are dealing with synchrotron radiation here. Synchrotron radiation is produced by electrons accelerated to extremely high energy levels in the magnetic field of the white dwarf star,” says Prof Meintjes.

He developed a theoretical model to interpret a new set of measurements that was taken by the 1,9 m telescope and the 10 m SALT telescope at the South African Astronomical Observatory (SAA0).

Totally unique phenomenon could contribute to energy production on Earth
“I further indicated that the interaction between the magnetic fields of the white dwarf star and the red dwarf star induces secondary processes that specifically describe the behaviour of the radiation in the radio band and infrared band accurately. AR Sco is the first white-red dwarf binary system of which all the pulsated radiation could be explained by the synchrotron process, which is totally unique,” says Prof Meintjes.

According to Prof Meintjes, the value of the model lies in the fact that the processes which produce the radiation in AR Sco, can also be applied to produce energy on Earth.

 

Plasma reactors are based on roughly the same processes which apply in AR Sco, and with refining, it could be utilised to generate electricity in future. This will be much cleaner than nuclear energy.

 

The model developed by Prof Meintjes explains all the radiation in the system – from radio waves to X-rays – in terms of electrons accelerated to extremely high energy levels by electric fields in the system, which then produce synchrotron radiation over a very wide band of the electromagnetic spectrum.

Prof Meintjes is currently working on a follow-up article examining the evolution of the AR Sco, in other words, the origin of such a unique system and the final state towards which it is evolving. “My vision for the immediate future is therefore to develop a model for the evolution of the source concerned,” he says.

 

 

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