External vacuum sealers
These machines draw air through channels in the bag. Smooth chamber pouches will not evacuate correctly, and liquids should not be vacuumed through the open end.
Catering Equipment
A commercial vacuum pack machine should suit the product, bag system and daily sealing pattern. Chamber models remove air from the bag inside an enclosed space and can suit portioning, moist foods and sous-vide preparation, while external suction formats depend on compatible bags and a clean, dry sealing path.
Chamber dimensions set the practical pack size and arrangement. Pump duty and recovery should be checked against the number of repeated cycles, rather than assuming a larger-looking unit will support continuous production.
Machine and bag compatibility
Start with the machine type, then confirm the bag mouth fits the sealing bar and the filled pouch fits inside the chamber. Brand is a useful shortcut only after those compatibility checks pass.
These machines draw air through channels in the bag. Smooth chamber pouches will not evacuate correctly, and liquids should not be vacuumed through the open end.
The filled pouch must sit inside the chamber with its open edge flat across the sealing bar. Check both pouch width and length, not the sealing-bar width alone.
Use a chamber machine for liquids and moist products. Select a pouch specifically rated for the intended cooking temperature and time.
Key factors to consider before purchasing. Our team can help you find the right fit — call or get a quote anytime.
Match equipment capacity to your daily output. Consider available floor space, door clearances, and whether you need underbench or upright models.
Forced air cooling recovers temperature faster — ideal for busy kitchens. Static cooling suits low-traffic display. Check power supply (single vs three phase).
Ensure adequate ventilation clearance. Check local council requirements for gas connections and electrical compliance. We can help with kitchen planning.
Submit your kitchen requirements — our equipment specialists will send you a tailored shortlist of vacuum sealers that fits your budget, venue type and compliance needs.
Standards & Compliance
Test representative portions, including their bag thickness, folds and liquid content, before settling the workflow. The bag mouth must lie flat across the sealing area without food, moisture or creases interrupting the closure.
Vacuum packing does not replace temperature control or food-safety procedures. Label, chill and store products under the venue’s documented process, especially when preparing food for sous-vide cooking.
FAQ
Yes—use a chamber vacuum sealer for consistent results. External units struggle with liquids.
Yes. Removing oxygen slows spoilage and freezer burn.
Yes—they seal liquids easily and produce air-free bags that cook evenly.
Embossed bags for external machines; smooth bags for chamber models.
High-volume venues should check pumps, seals and gaskets regularly.
Why KW
Pack shape determines the starting questions KW asks about a vacuum sealer: whether it lies within a chamber, needs liquid control or demands repeated cycles at a preparation bench. Bag compatibility and cleaning access can then be checked against the portioning routine; phone 1300 001 366.
Deep Dive
Technical depth from KW's commercial kitchen specialists.
A chamber format can manage suitable liquids because pressure changes around the entire bag, while external machines draw through the bag opening and need the specified bag construction. Choose from the products and process, not the label alone.
Count packs during the busiest preparation period and include bag loading, sealing, labelling and changeover time. Confirm that the documented duty suits that repetition and provide a landing area for finished packs.
Plan approved removable-part cleaning with wash-up equipment, coordinate portion preparation through catering equipment and review the broader commercial kitchen range.
Use a chamber machine when the product and compatible bag can fit inside and the process benefits from enclosed pressure control, including suitable moist foods. Choose external suction only when the approved bag type and product moisture suit air removal through the open end.
The filled pack must lie inside without crowding and its open edge must reach the sealing bar flat. Measure representative portions and allow for bag arrangement; unused chamber volume is less important than reliable placement.
Use a machine, bag and program specifically suitable for the product, keep the sealing edge clean and control fill level so liquid does not contaminate the closure. Chill and handle the finished pack under the venue’s food-safety process.
Isolate the machine as directed, wipe the chamber and sealing area with an approved method and remove food or bag residue. Inspect the bar, lid seal and replaceable parts for damage, then leave surfaces dry before the next cycle.
