Whether you're new to wild yeast and bacteria testing your beer or a seasoned veteran, this list of our most popular brewing industry media acts as a quick reference sheet that you can return to whenever you need more specific information.
Barney Miller Agar ( B02-125)
Barney Miller Agar was developed by Barney, Kot, and Chicoye at Miller Brewing Company in order to detect beer spoiling microorganisms. A lactic acid bacterium, with no oxygen requirements, usually causes this spoilage during brewing and processing of beer.
Typical Bacteria include: Lactobacillus brevis, Lactobacillus delbruekii, Pediococcus acidilactici, Pediococcus damnosus
Universal Beer Agar ( U21-100)
Universal Beer Agar was forumlated by Kozulis and Page to isolate and enumerate a wide variety of bacteria and yeast which are encountered in the brewing industry. The selectivity of this agar allows only the growth of these organisms in the preseence of hops constituents and alcohol. The addition of beer to the formulation inhibits the growth of transient airborne microorganisms.
Typical Bacteria include: Escherichia coli, Saccharomyces cerevisiae, Lactobacillus fermentum
R2A Agar (R18-100)
R2A Agar was developed by Reasoner and Geldreich for recovery and isolation of heterotrophic bacteria from treated potable water. This is a low nutrient medium in which a combination of longer time and lower temperature of incubation promotes the growth of stressed and chlorine-treated bacteria.
Typical Bacteria include: Enterococcus faecalis, Escherichia coli, Staphylococcus aureus
WL Nutrient Agar (W23-102)
WL Nutrient Agar is used for cultivating yeasts, mold and bacteria encountered in brewing and industrial fermentation processes. WL ( Wallerstein laboratory) Nutrient Agar was developed by Green and Gray in their study of fermentaiton processes. Viable baker’s yeast counts may be completed using WL Nutrient Agar at a pH of 5.5
Typical Bacteria Include: Escherichia coli, Lactobacillus fermentum, Proteus mirabilis, Saccharomyces cerevisiae
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San Jose, CA. - International Commissary Corporation (ICC) has issued a voluntary recall of certain lots of two retail products: Marie Callender's 7oz & 14oz Cheese Biscuit Mix. The 7 oz recalled product has Best By dates of 3/22/17 and 5/17/17 and was sold in retail stores in the following states - AL, CA, WA, [...]
from FDA.gov...Continental Mills has issued a recall affecting only retail Krusteaz Blueberry Pancake Mix, which involves product manufactured between April 2016 and June 2016. The company was notified by our supplier that their product, a blueberry nugget, is made with a small percentage of affected flour which was recalled by General Mills because it may [...]
General Mills of Minneapolis, MN, continues to collaborate with health officials to investigate a multistate outbreak of E. coli O121, and is expanding its recall of Gold Medal flour, Wondra flour, and Signature Kitchens flour to include flour made earlier in the fall that may still be in consumers’ pantries. The recall is being expanded [...]
Radagast Pet Food, Inc. (Portland, OR) has announced a voluntary recall of four lots of frozen Rad Cat Raw Diet products, sold in 8oz., 16oz., and 24oz. tubs, and free 1oz sample cups, due to the potential to be contaminated with Salmonella and/or Listeria monocytogenesSalmonella and Listeria monocytogenes can affect animals eating the products and there is risk to humans [...]
News Release Class I Recall 049-2016Health Risk: High Jun 14, 2016 En EspañolCongressional and Public Affairs Benjamin Bell(202) 720-9113WASHINGTON, June 14, 2016 – G & M Co., a Newark, N.J. establishment, is recalling approximately 3,586 pounds of beef products that may be contaminated with E. coli O157:H7, the U.S. Department of Agriculture’s Food Safety and Inspection Service (FSIS) announced today.The bulk beef cuts [...]
The U.S. Food and Drug Administration (FDA) along with the Centers for Disease Control and Prevention (CDC) and state and local officials are investigating a multi-state outbreak of Shiga toxin-producing Escherichia coli O121 (STEC O121) infections.What is the Problem and What is Being Done About It?The FDA, CDC and state and local officials are investigating [...]
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