Bitter Brewzer - Games, Puzzles & Learning. The result of six years of research and development is a powder made of East Anglian barley, hops and yeast which is simply placed in the 28cm diameter micro-brewery with cold water and left for three weeks. The result is a cheap, delicious and (unlike most mass produced beers) completely chemical free. You can re-use the micro-brewery as often as you like - the ingredients enclosed with the Brewzer make ten pints but we would recommend a 30 pint refill pack as an astute investment, reducing the price per pint to a mere 89p. Home made beer without the hassle, expense and mess of traditional home-brewing. Due to sales restrictions this item cannot be sold in the United States.