Bag with airtight seal

Resealable bag

The resealable bag is a fundamental accessory in the modern kitchen, used for storing ingredients and preparations in a safe and practical way. It is generally made of durable, transparent plastic, which allows the contents to be viewed without needing to open it. Its closure mechanism, similar to a zipper, ensures the interior is completely sealed, preventing the entry of air, moisture, and potential contaminants.

This type of bag is very popular for preserving fresh food, marinating meats, storing fruits, vegetables, and leftovers, as well as in culinary techniques like vacuum sealing or "sous vide." Its origin is not tied to a specific region but rather to the development of plastic materials and advanced packaging technology, which have become popular globally since the late 20th century.

Among its main properties, its impermeability, ease of repeated opening and closing, and its ability to preserve food for longer, helping to reduce food waste, stand out. Furthermore, they are reusable and allow for space savings in refrigeration or freezing.

In Latin America, this tool may be known by different names depending on the country, such as resealable bag, ziplock bag, zip-closure bag, or simply airtight seal bag. Regardless of the name, its function and utility in the kitchen are universal.