Leftovers: leave them in the pot or divide them into containers?

Whether leftovers turn into a meal the next day is usually settled by the decision you make while clearing the table. Food put away divided into containers waits as a ready meal; the same food left in the pot asks for a fresh decision every time the fridge opens. The difference is not in the food but in the form it waits in.

What happens to food left in the pot?

Food left in the pot is usually served straight from it, and the portion stays vague. How much you take is decided by the bottom of the pot; with the same food divided into a container the amount is clear from the start, and the meal begins and ends.

The second point is cooling down. A deep, large pot cools far more slowly than a shallow container; there is a limit to how long it may stand, and that limit changes with the type of food. What those limits are and how the cooling is done is explained with its source in how many days leftovers keep in the fridge.

The third is visibility. A pot with the lid on is a volume in the fridge whose contents are unknown. A container you cannot see into is, in most homes, the last one checked and the one most often thrown away.

What does dividing it up change?

The most visible gain is that the portion is set in advance. The amount put into a container stands as one meal; what gets reheated the next day is not the whole pot but only that meal’s share.

The second is speed. A container waiting ready to be reheated removes the decision to cook again on a tired evening; that decision was already made the day before.

The third is that it protects variety. When the whole of a dish is not finished in one day, the rest can be frozen and left for another week, so there is no obligation to eat the same dish day after day. How to portion the share you will freeze is the subject of freezing food in portions.

How do you choose the container?

The deciding factor is the size of the container. Single-meal containers make serving easier; one large container calls for a fresh decision about dividing every time it is opened, and that decision usually is not made.

The second is being able to see inside. A container whose contents are clear from the outside is not forgotten at the back of the fridge; containers you cannot see into are passed over unopened and their turn never comes.

The third is what is written on it. A container labeled with the date and the contents is an item whose waiting time is known; an unlabeled container is usually thrown away out of doubt. The material of the container is a separate question and is taken up in glass or plastic storage containers.

How do leftovers become a second meal?

Rather than putting the same dish on the table in the same form a second time, the easiest route is to add a new item beside it. A fresh salad beside leftover rice, or yogurt beside a leftover vegetable dish, is enough to renew the plate.

The second route is to make it an ingredient in another dish. Leftover boiled chicken can go into a salad, leftover legumes into the body of a soup; used this way the dish is not the main item but a component, and the sense of repetition disappears.

How texture changes with reheating is a separate topic and is explained in what changes when you reheat leftovers. The question here is the step before reheating: the form the food waits in.

What can you do today?

You can try putting the leftovers away at the same moment the table is cleared. A pot left until after the dishes are done is, in most homes, the last one put away, and that delay holds up every step that follows.

Keeping containers to single meals and writing the date on them removes most of the decisions that would otherwise come later. Putting the oldest container at the front as you load the fridge lets the order set itself; what is at the front gets eaten, what stays at the back gets forgotten.