Jefferson County, Wisconsin. Jefferson County is a county in the U.S. state of Wisconsin. As of the 2010 census, the population was 83,686. Its county seat is Jefferson. Jefferson County comprises the Watertown-Fort Atkinson, WI Micropolitan Statistical Area, which is also included in the Milwaukee-Racine-Waukesha, WI Combined Statistical Area.
Step 3: Grill the Pork Tenderloin. For the quickest method of grilling, place the pork tenderloin on the grill between burners if using a gas grill, or over the hottest part of the coals if using a charcoal grill. Replace the cover, and cook for 1 to 2 minutes or until grill marks appear. Flip, and continue cooking, covered, 1 to 2 minutes. Repeat this process several times (pork tenderloin typically takes about 15 to 20 minutes to grill), replacing the cover between flips, until meat is cooked through. The meat will feel firm yet springy when poked once it is finished cooking.
Maintain a grill temperature (on the cool side) of around 325 - 350. A 6 pound beef tenderloin should take a little over an hour to reach our magic temperature of 130 degrees. Don't go by time though, cook to temperature. Once the tenderloin hits 130 degrees, remove from the grill and place on a platter.Allow the tenderloin to rest under aluminum foil for 15 minutes before carving. Serious, let it sit! If you don't, all of those delicious juices will run out of the meat.Remove the twine.on't go by time though, cook to temperature. Once the tenderloin hits 130 degrees, remove from the grill and place on a platter. Allow the tenderloin to rest under aluminum foil for 15 minutes before carving. Serious, let it sit! If you don't, all of those delicious juices will run out of the meat.