If it is intended that they be used within a few days, in a covered container in the fridge Amended - Sorry - misread question, but the answer's esentially the same. They'll last a few days in a covered container in the fridge.
Potatoes! Big 'Russet' potatoes. Much bigger than you get at the grocery store. These potatoes get about a foot long.
They should be safe to eat if left in the stew less than three to four hours, as long as they're cooled down.
Boiled potatoes could develop harmful mold even in a refrigerator, in a period of 3 weeks. That is a very long time to store boiled potatoes (unless frozen, which is safer). Three weeks at room temperature is far too long for boiled potatoes (although raw potatoes can last that long).
Long term storage in a box filled with dry sand. Layer the potatoes with the sand. Keep the whole thing in a cool dry location.
Save as much of the liquid as you can from the original container, then store in the refrigerator in an airtight container. My leftover olives are usually eaten within a week, but I know for sure they'll last that long in the fridge.
After Christmas, probably.
I have stored russet potatoes for up to a year. I glean my potatoes in early October in a field that is currently being harvested. I store them in my garage until early November. I do not wash them and check them for rot or cuts before storing them in my root cellar in the basement. The root cellar stays between 36 and 46 degrees until the end of April. I store up to 2 barrels of potatoes this way. In May I go over my potatoes again and store them in the refrigerator until September when I can pick some of the new crop. Aroostook potato farmers store tons of potatoes until mid August in refrigerated warehouses. Russet potatoes can be kept for up to a year if temperature and humidity are right.
The answer depends entirely on the sort of leftover to be reheated. Leftover pizza would be reheated quite differently than leftover pot roast or soup.
Potatoes don't need to be treated. So long as they are stored in a cool(40 degrees and not in the refrigerator), dark place with humidity of 90-95% they should be fine till the next planting season. On a side not do not store damaged potatoes because they will spoil the bunch and they store best in well ventilated crates with sand in the bottom. Before storing harvested potatoes will need to be cured for 2 weeks at a temperature of 50-60 degrees with a relative humidity of 85 - 90%. If storage temp get above 50 the potatoes will sprout after a few months. On a side not do not store potatoes with onions unless you want to lose the whole bunch.
You can store raw potatoes that are cut in water to keep them fresh in the refrigerator.They will stay good for a few days stored this way. You should cook them as soon as possible.
Leftover pork should be good for 3 to 4 days, refrigerated.
=how long?...well potatoes don't have natural energy soo...0 hours to be exact.=