1. Introducció i finalview
The KOIOS Vacuum Sealer Machine HK028C is designed to extend the freshness of your food by removing air from specially designed bags and containers. This process helps to preserve nutrients, flavor, and texture, reducing food waste and saving storage space. This manual provides essential information for safe and efficient operation of your new vacuum sealer.

Image: The KOIOS Vacuum Sealer Machine HK028C shown with various types of food (meat, vegetables, fruits, snacks) vacuum-sealed in bags, illustrating its food preservation capabilities.
2. Contingut del paquet
Upon unboxing your KOIOS Vacuum Sealer Machine HK028C, please ensure all the following items are included:
- 1 x KOIOS Vacuum Sealer Machine HK028C
- 10 x Food Sealer Bags (5 x 11.7"x10" bags, 5 x 11.7"x7.9" bags)
- 1 x Mànega d'aspiració d'aire
- 1 x Manual d'usuari
- 1 x cable d'alimentació de CA
Video: An unboxing and function introduction of the KOIOS HK028C Vacuum Sealer, detailing the contents of the package and initial overview de la màquina.

Image: A visual representation of the KOIOS Vacuum Sealer Machine HK028C package contents, including the machine, various sizes of bags, air suction hose, user manual, and AC power cord.
3. Característiques del producte
The KOIOS Vacuum Sealer Machine HK028C offers several features designed for convenience and effective food preservation:
- Reliable Vacuum Sealing: Achieves vacuum sealing in 8-12 seconds, extending food freshness up to 8 times longer.
- Wet/Dry Modes: Dedicated modes for dry and moist foods, ensuring optimal sealing for different food types.
- External Manual Vacuum: Connects to crisper containers, bags, and wine stoppers via an air suction hose to reduce oxidation.
- Tallador incorporat: Integrated sliding cutter allows for custom bag sizing.
- Disseny compacte: Lightweight and space-saving design for easy storage in drawers or lockers.

Image: The KOIOS Vacuum Sealer Machine highlighting its 'Moist' and 'Dry' sealing modes, with examples of different food types (meat, avocado, beans, cookies) being sealed.

Image: The KOIOS Vacuum Sealer Machine demonstrating its external vacuum function, showing the air suction hose connected to vacuum jars, storage bags, and a wine stopper.

Image: The KOIOS Vacuum Sealer Machine featuring its two-way sliding cutter, illustrating how to press and slide to cut a customized bag.
4. Configuració
Before first use, unpack all components and place the vacuum sealer on a flat, stable surface. Ensure the power cord is accessible.
- Connecteu el cable d'alimentació de CA a la màquina i a una presa de corrent.
- Press down firmly on both ends of the lid until you hear a "clicking" sound to ensure it is properly locked.
- The ON/OFF indicator light will illuminate, indicating the machine is ready for use.
Video: An unboxing and function introduction of the KOIOS HK028C Vacuum Sealer, showing initial setup steps and an overview dels components de la màquina.
5. Instruccions de funcionament
5.1 Basic Sealing (Dry Food)
- Place the open end of the vacuum bag well under the slabs in the vacuum chamber.
- Press firmly on both sides of the lid to lock it until you hear a "clicking" sound.
- Select the 'Dry' mode button. The machine will automatically vacuum and seal the bag.
- Once the 'Seal' light turns off, indicating completion, press the release buttons on both sides to open the lid and remove the sealed bag.

Image: A four-step visual guide demonstrating how to vacuum seal food using the KOIOS Vacuum Sealer Machine, from placing the bag to opening the lid after sealing.
Video: A demonstration on how to use the HK028C vacuum sealer for basic sealing operations.
5.2 Sealing Moist Food
For moist foods, it is recommended to pat dry the open end of the bag with a kitchen towel before placing it in the vacuum chamber to ensure a strong seal. Select the 'Moist' mode button. The machine will adjust its vacuuming process for optimal results with moist items. Note that sealing moist food may take slightly longer than dry food.
Video: A demonstration of how to vacuum and seal wet food using the KOIOS Vacuum Sealer, including preparation tips.
5.3 Using External Vacuum Function
To use the external vacuum function for containers or wine stoppers:
- Prepare your container or wine stopper with a vacuum port.
- Connect one end of the air suction hose to the vacuum nozzle on the machine and the other end to the container's air hole.
- Press the 'Manual' button to start vacuuming. The blue light will be on.
- Once the desired vacuum level is reached, press the 'Seal' button to stop. The blue light will turn off automatically when the vacuum process is complete.
5.4 Ús del tallador integrat
The built-in two-way sliding cutter allows you to create custom-sized bags from a roll. Simply pull the bag material across the sealing bar, press down on the cutter button, and slide it across to achieve a clean, straight cut.
5.5 Manual Vacuum Control
For delicate items or when precise vacuum control is needed, use the 'Manual' and 'Seal' buttons. Press and hold 'Manual' to vacuum to your desired level, then press 'Seal' to initiate the sealing process, maintaining the food's shape.
6. Manteniment
Proper maintenance ensures the longevity and optimal performance of your vacuum sealer:
- Desconnecteu sempre l'aparell abans de netejar-lo.
- Netegeu l'exterior de la màquina amb anunciamp tela. No submergiu la unitat a l'aigua.
- Clean the vacuum chamber and sealing strip regularly to prevent food particles from affecting the seal. Use a soft cloth and mild soap if necessary.
- Ensure the foam gasket is clean and free from debris to maintain a proper vacuum seal.
- Store the machine with the lid unlocked when not in use to prevent compression of the foam gasket.
7. Solució De Problemes
If you encounter issues with your vacuum sealer, refer to the following common solutions:
- La màquina no s'encén: Assegureu-vos que el cable d'alimentació estigui ben connectat tant a la màquina com a una presa de corrent que funcioni.
- Bag does not vacuum properly: Check that the open end of the bag is placed correctly within the vacuum chamber. Ensure the lid is firmly locked on both sides. Inspect the foam gasket for any debris or damage.
- Seal is inconsistent or weak: Make sure the sealing strip is clean. For moist foods, pat dry the bag opening to remove excess liquid.
- Vacuuming takes too long: Verify that the bag is not overfilled and that there are no leaks in the bag or around the vacuum chamber.
Si els problemes persisteixen, poseu-vos en contacte amb l'atenció al client.
8. Especificacions
| Marca | KOIOS |
| Número de model | HK028C |
| Material | Plàstic |
| Color | Negre |
| Dimensions del producte | 15.7 cm de llargada x 3.3 cm d'amplada x 2.7 cm d'alçada |
| Pes de l'article | 1.91 lliures |
| Font d'alimentació | AC |
| Mode d'operació | Automàtic |
| Wattage | 110 watts |
| Voltage | 120 V |
9. Garantia i Suport
The KOIOS Vacuum Sealer Machine HK028C comes with a 1-year warranty. For any questions, technical support, or warranty claims, please contact KOIOS customer service:
- Weblloc: www.koiosshop.com
- Correu electrònic: support@koiosshop.com
- Telèfon: 1-855-888-2111
Si us plau, conserveu el rebut de compra per motius de garantia.