Escherichia coli is a common bacterium found in the human intestinal tract and vital to the proper functioning of our digestive system. While most strains of E. coli are beneficial to humans, a few are pathogenic. The most infamous example is E. coli O157:H7.

Keep your brown bag lunch safe by using this information to see which foods in your lunch should be kept cold.

Salmonella species are common, naturally occurring bacteria found in the intestinal tracts of many animals and birds. When certain species of Salmonella are transferred from animals to humans – often through food contaminated with animal feces – humans experience symptoms of Salmonella poisoning.

Staphylococcus aureus is a bacterium found on the skin and in the nasal passages of up to 25% of healthy people and animals. S. aureus causes foodborne illness by growing in temperature abused food and producing a heat stable toxin. Consumption of this toxin (not the bacteria) can make you very sick, this is why foodborne illness caused by S. aureus is called a food intoxication.

Listeria monocytogenes is a bacterium commonly found in soil, water, sewage, and decaying plant material. L. monocytogenes is a particularly hardy pathogen, capable of surviving in damp areas, and on stainless steel and glass within the food processing environment. Once established, it is difficult to eliminate and may often be the cause of post-process food contamination.

Clostridium botulinum is a spore forming bacterium. A spore is a phase that some cells enter when conditions become unfavorable. Spores are resistant to extreme temperatures, drying, and UV light and can be found in soil and water. Spore are found everywhere in the environment.

El proceso para envasar alimentos en casa o conservas caseras, depende de la acidez del alimento, lo cual se determina por su pH. Los alimentos de baja acidez tienen un pH más grande que 4.6, y los alimentos de alta acidez tienen un pH menos que 4.6. En general, los vegetales (verduras o hortalizas) y carnes son alimentos de baja acidez, y las frutas son alimentos alta acidez. Los alimentos de alta acidez pueden procesarse de manera segura por agua hirviendo, pero los alimentos de baja acidez se deben procesar en una olla a presión para conservas.

When you are volunteering as a Virginia Cooperative Extension Master Food Volunteer or as a volunteer for other Family and Consumer Sciences programs, you may have the opportunity to share what you learn with others by giving a foods demonstration. Talking in front of a group of friends and other volunteers can be a little scary at first, but with planning and practice, you will be able to give a foods demonstration with ease.

A good demonstration can motivate others to try new fruits and vegetables, eat more servings of them, and prepare them more nutritionally. Before you present a farmers market demonstration, check with the local market manager and/or health department for current regulations. Next, pull out the old razzle-dazzle and leave your audience so star struck, they will come back to the farmers market for more! This demonstration activity can be used by adults and older youth.

The majority of the milk and dairy products sold in the United States are pasteurized, which means they go through a heat process that kills harmful bacteria (e.g., Salmonella, E. coli, Campylobacter, etc.) that can be found in unpasteurized (raw) milk. Pasteurization not only improves the safety of the milk but also lengthens its shelf life.

Creating and maintaining community and school gardens has been identified as an effective strategy to increase healthy food awareness and consumption. Unfortunately, fresh fruits and vegetables have been linked to more than 450 outbreaks of foodborne illness in the U.S. since 1990. In commercial food production, employing a set of risk-reduction steps — known as good agricultural practices (GAPs) — has been pointed to by the U.S. Food and Drug Administration as the best prevention against foodborne, illness-causing pathogens.