Also, a Gram stain may reveal large numbers of certain organisms (eg, campylobacters, staphylococci, or clostridia). Gram staining of the stool is not typically obtained because large amounts of bacteria present in normal colon flora make interpretation difficult.
When meat is ground, more of the meat is exposed to the harmful bacteria. Bacteria multiply rapidly in the Danger Zone â the temperatures between 40 and 140 Â°F (4.4 and 60 Â°C). Refrigerate or freeze ground beef as soon as possible after purchase. This preserves its freshness and slows the growth of bacteria.
Fresh Cut Lunch Meats. Fresh cut lunch meat from the deli counter at your grocery store lasts about 3 to 5 days in the refrigerator. Vacuum sealed packaged lunch meat lasts until the expiration date on the package as long as it is unopened. Once opened, the meat can be kept in the refrigerator for 3 to 5 days. Lunch meat spoils quickly. If your lunch meat smells or looks bad, it is best to throw it away, regardless of how long it has been in the refrigerator.