What is flocculation? As brewers, we all know that different yeast strains possess different flocculation abilities (i.e. where the yeast cells adhere to each other to form flocs, which then separate from the bulk liquid). The ability for yeast to do this allows brewers a simple, and cost effective method to separate yeast cells from … [Read more…]
Beer spoilage Beer has been seen as a safe beverage for hundreds of years, especially when safe drinking water was unavailable. It is relatively hard to spoil due to its various characteristics. These include: ethanol levels commonly ranging from 0.5-10% w/w; bitterness compounds from hops (about 17-55 ppm of iso-alpha-acids) are generally toxic to bacteria; … [Read more…]
Brew master brings us news that should make all home brewers smile; a new locally produced liquid yeast brand called One Beer. Currently they are on an introductory special at R25 per vial, that is the same price as a pack of dry yeast! I haven’t had a chance to try one yet, but the … [Read more…]
Great news for those of you South Africans who want a little more selection when choosing yeasts for your brew. The Beer Keg is now importing White Labs yeast. While these days, dry yeast is perfectly acceptable for brewing; nothing quite beats the variety of styles available in liquid yeast. The selection of Belgian yeasts has me drooling.