Scientists are improving beer - by having mini robots dubbed “BeerBots” swim around in it.<br /><br />Dr Martin Pumera and her colleagues at the Brno University of Technology, Czech Republic, wanted to develop a self-propelled bot to both make fermentation proceed faster and simplify the separation of yeast from the final beer.<br /><br />Reporting in ACS Nano, the team shows that magnetic packages of yeast can make the fermentation phase go faster and cut out the need to filter the beverage.<br /><br />The two-millimetre-wide robots are made of iron oxide and contain yeast to supercharge the fermentation process.
