Pure Roast Mode. Roast beef in pure roast oven mode. Roast beef with pure roast oven mode, the temperature in the bottom of the fire between two hundred to two hundred and four, the top of the fire between two hundred and six hundred and three hundred. Electric oven and gas oven heating degree and time there are different gaps, so in the roasting process needs to be the case. Beef alone then use an induction skillet or home electric pie pan, convenient and quick.