Unaccounted for (natural gas): Represents differences between the sum of the components of natural gas supply and the sum of components of natural gas disposition. These differences maybe due to quantities lost or to the effects of data reporting problems.
Most brass will melt at temperatures as low as 1,650ÂºF (900ÂºC), but a higher maximum temperature will give you a margin of error, and make the brass easier to pour. Select a furnace large enough to hold the crucible and brass you intend to melt. Consider the fuel you will be using.
Roast in a 450Â° oven (see notes) until deep golden brown, 40 to 45 minutes. 3. Remove pan from oven and scatter onion and carrot slices around pork. Pour 1/4 cup sherry and 2 cups broth into pan. Add chile flakes. Baste pork with some of the pan juices. Reduce oven temperature to 225Â° and bake until a thermometer inserted through the center of thickest part at bone reads 170Â° to 175Â°, 8 to 9 hours (do not insert thermometer before the last hour of roasting).