Chapter 19

Beer Spoliage Organisms

Molds

Molds are nonchlorophyll-bearing plants that range in size from a single spore to large cell aggregates. Commonly occurring types are species of Mucor, Penicillium, Aspergillus, Cladosporium, Geotrichum, and Rhizopus. Most molds are able to grow well at ordinary temperatures, the optimum range being from 25 to 30ºC, although some species can grow at 35ºC or even higher temperatures and others at lower temperatures. Molds are normally aerobic organisms and can grow over a wide pH range, although most species prefer an acid pH.

Click on the following topics for more information on beer spoilage organisms.

Related Topics on Beer Spoilage Organisms

• Introduction Beer Spoilage Organisms
• Bacteria
• Wild Yeast
• Molds
• References