Thursday, November 28, 2013

History of brewing root beer

Root beer was historically made from Sassafras root. Today the root is no longer used because of its toxic nature. A mixture if herbs and spices now replace sassafras root. Yeast, sugar and extract allow for natural carbonation from the anaerobic fermentation process.








What's stomata with you?: Students examine Tradescantia zebrine - magnificent guard cell and stomates.