1 Beef should be cooked to an internal temperature of 165 degrees, poultry to 180 degrees, pork to 170 degrees, and ground beef to 170 degrees.  Keep foods out of the temperature danger zone â Once items are cooked, it is important to keep them warm or to refrigerate them promptly.
Lettuce (Lactuca sativa) is an annual plant of the daisy family Asteraceae.It is most often grown as a leaf vegetable, but sometimes for its stem and seeds.oday, the majority of lettuce is grown for its leaves, although one type is grown for its stem and one for its seeds, which are made into an oil. Most lettuce is used in salads, either alone or with other greens, vegetables, meats and cheeses.
Iceberg lettuce is that plain pale green that's typically used in salads, tacos, and sandwiches. Although it's not as popular as it used to be, many people still prefer the crispness of iceberg lettuce over the darker greens. One reason it's lost popularity is due to the lack of nutritional content. Iceberg lettuce just isn't as nutritious as superfood greens such as kale, spinach, and arugula, but it's certainly not bad for you. For one thing, it's very low in calories. In fact, it has less than ten calories per cup of fresh leaves.