Mozzarella: why you shouldn’t throw away the water from the package right away

When you open a package of mozzarella, the gesture is almost automatic: you pour the liquid into the sink and take the cheese to bring it to the table. Yet that water, which is technically called governing liquid, is not a secondary element at all. On the contrary, it performs an important function for the preservation of the product and can also provide useful information on the quality and correct management of mozzarella. For this reason, experts advise not to get rid of it too quickly.

What is the governing liquid really used for?

The liquid inside the package is not simple water. It is a solution composed mainly of water and salt, designed to keep the mozzarella in the best possible conditions until consumed.

Mozzarella is a fresh cheese characterized by a high moisture content. Precisely this characteristic makes it particularly delicate and subject to rapidly losing softness and freshness if exposed to air. The governing liquid therefore serves to protect it from dehydration, helping to preserve the typical consistency of stretched curd and preserving its organoleptic characteristics.
According to experts in the dairy sector, the presence of the liquid is essential to limit the changes that the product could undergo during storage, especially in the days following purchase.

Because it’s not worth deleting it right away

One of the most common mistakes is to transfer the mozzarella to a plate or container, completely eliminating its liquid. In this way the cheese gradually begins to lose moisture, with the risk of becoming drier, less elastic and less pleasant on the palate.

This phenomenon is particularly evident when the mozzarella is not consumed immediately after opening the package. If you plan to use it later or the next day, keeping it submerged in the original liquid can help preserve its texture and flavor better.
Also for this reason many producers recommend leaving the mozzarella in its liquid until consumed, avoiding prolonged exposure to the air which could alter its characteristics.

An aid for correct conservation

The management of mozzarella after purchase is often underestimated. Many consumers, for example, think that the refrigerator is always the best choice. In reality, the situation varies depending on the type of mozzarella and the instructions on the package.

What is certain is that the preserving liquid continues to play an important role even during home preservation. In fact, when the product is kept in its original environment, the risk of it rapidly losing water is reduced and the balance between structure and taste is better preserved.
If the package has been opened but the mozzarella is not consumed entirely, storing it together with its liquid is generally the most suitable solution to maintain its quality for longer.

It can also be useful in the kitchen

Once the mozzarella is finished, the remaining liquid does not necessarily have to be thrown away immediately. In recent years, several chefs and cooking enthusiasts have started using it in some domestic preparations.

Since it contains small quantities of substances coming from cheese, such as mineral salts and protein components, it can be used in the preparation of dough for bread, pizza and focaccia, replacing part of the water required by the recipe. Some also use it to enrich leavened doughs to which it can give a light aromatic note.

Naturally, this is not an indispensable ingredient nor a mandatory practice, but it represents a way to reduce food waste and enhance a component that would normally end up in the waste bin.

A detail that tells the nature of the product

The very presence of the governing liquid recalls a fundamental characteristic of mozzarella: its nature as a fresh cheese. Unlike matured products, which can be stored for very long periods, mozzarella is designed to be consumed in a relatively short time and requires particular attention to keep its qualities intact.

For this reason, the liquid must not be considered a simple accessory element of the package. It is an integral part of the preservation system designed by the producers and helps to preserve that softness and juiciness that make mozzarella one of the most popular foods on Italian tables.

So the next time you open a package, it might be worth stopping for a moment before pouring everything down the sink. That water that many consider to be simple waste actually plays an important role in the quality of the product and, in some cases, can even find a second life in the kitchen.