Can white sauce be stored overnight?

Here's a breakdown:

Generally, NO. White sauce is susceptible to spoilage, especially overnight. This is because it often contains dairy products (like milk or cream) which can harbor bacteria that multiply quickly at room temperature.

Factors that affect storage:

* Ingredients: White sauces made with heavy cream or cheese are more likely to spoil than those made with milk or a thinner base.

* Cooking method: A sauce cooked to a higher temperature (like a béchamel) is safer to store than a sauce cooked at a lower temperature.

* Storage temperature: Refrigeration is essential for safe overnight storage.

How to store white sauce safely:

* Refrigerate promptly: Cool the sauce as quickly as possible, ideally within 2 hours of cooking.

* Store in airtight containers: This prevents the sauce from absorbing odors and helps preserve its freshness.

* Use within 3-4 days: White sauces are best enjoyed fresh, but they can be safely stored in the refrigerator for up to 3-4 days.

Exceptions:

* Certain types of white sauce are designed for longer storage: Some commercially prepared white sauces contain preservatives and are shelf-stable for longer periods.

* White sauce with added vinegar or lemon juice: The acidity of these ingredients can help slow bacterial growth, making the sauce safer to store for a slightly longer time.

It's always best to err on the side of caution. If you're unsure about the safety of a white sauce, it's best to discard it rather than risk food poisoning.