You spent Sunday cooking, and by Wednesday the chicken is dry, the salad is slimy, and the rice smells off. Disappointing food is rarely a cooking failure. It is almost always a storage problem, and the fixes are simple.

Mistake 1: Sealing food while it is still hot Locking a warm container shut traps steam, which condenses into water and turns everything soggy, and it raises the temperature inside your fridge. Let food cool down before you seal it, but do not leave it out for hours either. Cool it reasonably quickly, then refrigerate.

Mistake 2: Storing everything together When sauce, protein, grain, and greens share one container, the wet ingredients bleed into the dry ones and everything goes mushy. Store components separately and combine them at mealtime. Keep dressings and sauces in tiny jars and add them fresh, never poured over a salad days in advance.

Mistake 3: The wrong containers Flimsy containers that do not seal let air in, and air dries out proteins and speeds spoilage. Use airtight, leakproof containers, ideally glass, which does not stain or hold odors. Fill them reasonably full, since less trapped air means food keeps better.

Mistake 4: Ignoring the timeline Not everything lasts five days. Cooked proteins and most prepped vegetables are best within three to four days; delicate greens fade fast. Plan to eat the most perishable components early in the week and the hardier ones later. When in doubt, freeze a portion on day one so nothing is wasted if the week goes sideways.