Many cuts of beef now meet the USDA's regulations to qualify as lean or extra lean. 1  Of these, the following are considered extra lean: 2  Eye of round roast and steak. 3  Sirloin tip side steak. 4  Top round roast and steak. 5  Bottom round roast and steak. 6  Top sirloin steak.
Some varieties of Limestone are more porous than others. In general, limestone countertops are porous and vulnerable to stains. Water and soap spills need to be wiped right to prevent staining.Acid substances such as vinegar, lemon juice and ammonia will cause surface discoloration and etching.n general, limestone countertops are porous and vulnerable to stains. Water and soap spills need to be wiped right to prevent staining. Acid substances such as vinegar, lemon juice and ammonia will cause surface discoloration and etching.
It doesnât have the same hardness in the feel that some people find unpleasant. Like other hard surface countertop materials, quartz is non-porous so it resists staining much better than granite, marble and concrete. It stands up to juice, oil, wine, tomato, coffee and other sources of stains in the kitchen. For cleanliness, a non-porous surface means that it will not harbor bacteria or viruses.