What is a freezer bag?
A freezer bag, also known as a deep-freeze bag, is a special plastic bag designed for hygienic and airtight storage of food at low temperatures. It reliably protects frozen goods from freezer burn, dehydration, and loss of flavor, while allowing organized storage of food in refrigerators and freezers.
Whether for commercial use in gastronomy, hotels, and institutional catering, or for private households, freezer bags offer a simple, effective, and safe solution for portioned storage and organization of frozen foods.
What are freezer bags used for?
Freezer bags are used for safe storage, portioning, and preservation of fresh or pre-cooked foods. Typical applications include:
- Freezing fruits, vegetables, herbs, or baked goods
- Portioning meat, fish, or soups
- Interim storage of food in cold rooms
- Protection during transport or prep in catering
- Preventing odor transfer in fridges or freezers
Thanks to various sizes and material thicknesses, freezer bags can be used flexibly in daily kitchen operations.
What types of freezer bags are available?
Freezer bag 1 litre
The smallest standard size, ideal for single portions, herbs, and small amounts of fruit or vegetables. Perfect for home use or mise en place in gastronomy.
Freezer bag 3 litres
Versatile for medium portions of meat, stews, or cooked meals. Popular with caterers and large kitchens.
Freezer bag 6 litres
Suitable for large quantities or bulk goods—ideal for stockpiling in large households, butcher shops, or high-turnover kitchens.
Freezer bag rolls
For high-volume needs or automated processing. Rolls with perforated individual bags enable efficient workflow, especially in production kitchens or when preparing items in batches.
Materials and properties
Most freezer bags are made from LDPE (Low-Density Polyethylene) or LLDPE (Linear Low-Density PE). These materials are:
- Food-safe & BPA-free
- Tear-resistant & flexible
- Frost-resistant down to –40 °C
- Odorless and tasteless
Additional features of some bags include:
- Label area for date and content marking
- Drawstring or clip closure for easy sealing
- Perforation on rolls for efficient bag separation
Advantages of freezer bags at a glance
| Feature | Benefit |
| Protection from freezer burn | Airtight seal reduces air and moisture exposure |
| Accurate portioning | Easy food distribution and stock control |
| Transparency | Contents easily visible |
| Space-saving | Stackable and flexible in the freezer |
| Hygienic | Single-use avoids cross-contamination |
| Cost-efficient | Ideal for bulk users with low per-unit costs |
Applications for freezer bags
Gastronomy & Catering
- Storing fresh ingredients, sauces, semi-finished products
- Hygienic pre-portioning for events or buffet service
- Organizing cold and deep-freeze storage areas
Hotels & Large Kitchens
- Structured freezer logistics with a wide product range
- Perfect for conference meals, breakfast prep, or banquets
Butcher Shops & Delicatessens
- Vacuum and freezing solutions for fresh meat and sausages
- Safe transport and storage protection
Private Household & Stockpiling
- Freezing leftovers, stocks, or meal prep portions
- Protection from freezer burn during long-term storage
What to consider when buying freezer bags
Size & Volume
Choose bag sizes that match your portioning needs:
- 1 litre = small individual portions
- 3 litres = standard household or gastronomy portions
- 6 litres = bulk storage or large items
Material Thickness
Thicker films (from 50 µm) offer more stability and tear resistance, especially useful for sharp or bulky items.
Closure Systems
- Bags without closure: best used with a clip or rubber band
- With zipper/press-seal: reusable, easy to open and close
Additional Features
- Label area for content and date
- Perforated rolls for quick and hygienic use
- Carton dispenser for easy access in large kitchens
FAQ | Frequently Asked Questions about Freezer Bags
How can I best protect food from freezer burn?
Fill the freezer bag with as little air as possible and seal it tightly. The less air, the better the food quality is preserved.
How do I recognize food-safe freezer bags?
Look for the food-safe symbol (glass/fork), BPA-free labeling, and materials marked as LDPE or LLDPE.
Are freezer bags reusable?
Some bags with zippers or clip closures can be reused if thoroughly cleaned. In gastronomy, single-use bags are standard due to hygiene regulations.
Are freezer bags available on rolls?
Yes. Especially for large-scale use, perforated rolls are available. They're space-saving, efficient, and ideal for quick dispensing.
Can freezer bags be labeled?
Many freezer bags have a label field. Alternatively, use stickers or markers on the outside.
Buy freezer bags online
At the Swiss online shop of Heros Hygiene, you'll find a wide selection of freezer bags in various sizes and styles.
✅ Bulk packs & rolls for gastronomy, retail & high-volume users
✅ Various sizes: 1 l, 3 l, 6 l
✅ Tear-resistant quality made from LDPE
✅ Food-safe & hygienically packaged
✅ Fast delivery from stock & fair volume discounts
✅ Swiss specialist dealer with personal customer support