1 Cook for 15 to 20 minutes (depends on size of roast) at 450 degrees F. 2  Then, without opening the oven door, turn the heat down to 325 degrees F. 3  Cook until meat thermometer inserted reaches about 140 degrees. 4  Generally this should take about 2Â½ to 3 hours, but it varies on oven and roast size.
Tea tree shampoo uses vary. If you have scalp conditions such as dandruff or head lice, tea tree shampoo may benefit you. If you are trying to stimulate hair growth and want to feel refreshed after shampooing, tea tree shampoo might be just the right product for you. Some people recommend using tea tree shampoo for pets.
Tea tree oil is often used in hair care as well. It is often used in shampoos and conditioners. It can treat scalp problems that are often caused by fungus or infection such as dandruff and scalp acne. Tea tree oil is also used in natural lice treatments and may be a good deterrent for the pesky bugs.