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.
Types of Lettuce. In the United States, an 1885 agricultural report listed no fewer than 87 varieties of lettuce. Today, there are four basic types of lettuce: butterhead, iceberg, loose leaf, and romaine. You are likely to find all of these in the produce sections of most supermarkets. Butterhead lettuce: This type includes Boston and Bibb lettuces, which are characterized by a loose head and grass-green leaves. Both have a soft âbutteryâ texture and a sweet, mild flavor. A head of Boston lettuce resembles a flowering rose. Bibb lettuceâalso called limestoneâforms a smaller, cup-shaped head.