A saddle point on the graph of z=x 2 ây 2 (in red). Saddle point between two hills (the intersection of the figure-eight-contour). In mathematics, a saddle point is a point in the domain of a function that is a stationary point but not a local extremum.
Hot food should be kept hot, at or above 140Â° F. 1  Wrap it well and place it in an insulated container until serving. 2  Just as with cold food - these foods should not sit out for more than 2 hours, or 1 hour in temperatures above 90Â° F. If food is left out longer, throw it away to be safe.
If you've cooked food that you're not going to eat immediately, cool it at room temperature (ideally within 90 minutes) and store it in the fridge. Putting hot food in the fridge means it doesn't cool evenly, which can cause food poisoning.