Most of the differences in building engines for off road SCORE or desert endurance racing purposes, say experts, concern the endurance factor. The annual Baja 1000 is actually 1,300 miles of punishing off-road racing. The winner will take 25 or 26 hours to complete the race, so the engines have to last for that long.
Double-dipping will make food go bad faster because it transfers saliva into the food, which promotes bacterial growth. One study even found that three to six double dips transferred about 10,000 bacteria from an eater's mouth to the dip sample. Putting leftovers away in a big clump may also promote food spoilage.
Leftovers stay safe only if you follow safety guidelines. Ensure that your fridge is between 32 and 40 degrees Fahrenheit. If the leftovers have already been out of the fridge for longer than two hours, err on the side of safety and toss them out. Place hot leftovers, such as soups or chilis that have been simmering on the stove, into shallow containers so they will cool within the two-hour safety period.