Vacuum machines external suction

External suction vacuum machines are ideal devices for storing food more durably, protecting it from moisture, air and external contamination.

These tools are particularly useful in the kitchen to prolong the freshness of food and prevent spoilage.

 

Main features

1. External suction technology: Vacuum machines with external suction remove the air inside specialised bags or containers, creating a low-pressure environment that slows down the oxidation process and the growth of bacteria. Suction is via a tube connected to the machine, which extracts the air from the bag and hermetically seals the opening.
2. Ease of use: Most of these devices are very easy to use, with operations simply involving placing the bag, selecting the desired programme and activating the machine. In addition, some machines offer options for different types of food, such as fresh, dry or delicate.
3. Sealing function: In addition to sucking air, many external suction machines include a sealing function that hermetically seals the bags, ensuring maximum protection of the contents. Some models also offer the option of sealing without air suction, for further versatility.
4. Versatility: These machines are not just limited to preserving food. They can be used to package ingredients for sous-vide, protect documents, seal fragile objects or even for long-term storage operations.

 

How to choose an external suction vacuum machine

1. Power and speed: The power of the pump is crucial, as it determines the speed at which the air is removed from the bag and the quality of the seal. A more powerful pump will ensure a more effective suction and faster time.
2. Size and capacity: Consider the machine's ability to adapt to different bag sizes. Some models only support standard bag sizes, while others offer more versatility, with options for larger or smaller bags.
3. Additional functions: Some machines offer advanced options such as sealing force control, preset programmes for various types of food (e.g. for meat, fish, vegetables) and the possibility of working with additional containers.
4. Ease of cleaning and maintenance: An easy-to-clean vacuum machine is essential for a long service life. Look for models that have removable and washable parts, such as the drip tray, and are designed to minimise the risk of pump clogging.
5. Design and robustness: Finally, it also evaluates the aesthetics and robustness of the product. A good ergonomic design makes it more comfortable to use, while a solid construction ensures durability.

With an externally suction vacuum machine, you can improve efficiency in the kitchen, reduce waste and extend the shelf life of food, making storage easier and safer.

 

Vacuum bags for use with external suction machines

External suction vacuum machines are only compatible with specific embossed or central channel vacuum bags and rolls.

They must be made of suitable materials to ensure good sealing and long shelf life. In particular, they must have an adequate thickness both to protect the food from the air and to ensure the proper functioning of the machine.

 

Pre-formed vacuum bags

These bags are already cut and ready to use, with a seal on one side and a rough inner surface that facilitates air suction. Usually this surface is square or diamond-shaped and generates a difference of peaks and troughs to aid suction. They are among the most common and readily available, and are designed to work with all externally suctioning vacuum machines, if of adequate thickness.

• Material: Polyethylene (PE) or a combination of polyamide and nylon.
• Surface: Embossed or textured interior to improve suction.
• Measures: Available in different sizes (small, medium, large) to meet the packaging needs of various foods.

 

Vacuum rolls

Vacuum rolls offer more flexibility than pre-formed bags, as they can be cut to the desired length, perfectly fitting the amount of food to be stored. After cutting the roll, simply seal one side to create a customised bag.

• Material: Like preformed bags, rolls are generally made of polyethylene or a combination of polyamide and nylon.
• Surface: Embossed to facilitate air intake.
• Versatility: Ideal for foods of different sizes or for those who need to pack variable portions.

 

Bags with valve system:

Some vacuum machines allow the use of bags with a small built-in valve.

These bags are designed to be used with a separate vacuum pump or with models that have an air extraction function even without a complete seal.

Although less common, they are useful for those looking for a specific solution for foods requiring more precise vacuum management, such as vacuum sous-vide cooking.

 

Sous-vide vacuum cooking bags

Although not strictly necessary for all machines, vacuum bags designed for sous-vide cooking are compatible with many machines with external suction.

These bags are generally thicker and stronger, designed to withstand high temperatures during the baking process.

• Material: Often made of nylon, polyamide and polypropylene to withstand at least 121 degrees for several hours without releasing plastic to food.

 

How to choose the right bags for external suction vacuum machines

• Size: Choose the size of the bag according to the amount of food you intend to store. Using bags that are too small or too large can compromise the effectiveness of sealing.
• Material thickness: If you intend to store more delicate or moist food, opt for thicker bags, which will provide better sealing and protection.
• Quality: Make sure to buy high-quality bags, as those that are too thin may easily break or not seal properly during vacuuming.

Finally, to ensure the best results, it is advisable to check the vacuum machine manufacturer's recommendations, as some models may require specific bags or materials to work best.

 

Professional external suction vacuum machines

Professional externally suctioned vacuum packaging machines are advanced devices designed for high performance, long service life, high efficiency and compliance with food contact and cleaning standards and machine regulations.

These machines are mainly used in professional environments, such as restaurants, delicatessens, packaging labs and supermarkets, where it is essential to seal large quantities of food quickly and safely.

Here is a description of the main features and components of professional external suction vacuum machines.

 

Structure and Design

• Robust materials: Professional vacuum packaging machines are generally made of durable materials such as stainless steel, which makes them wear-resistant, easy to clean and suitable for intensive use. Stainless steel is also hygienic and corrosion-resistant, making it ideal for professional environments.
• Dimensions: These machines are usually larger and heavier than home models, designed to support a continuous workflow. They can be large enough to handle larger bags or rolls, offering greater versatility.
• Performance: Professional external suction vacuum machines generally have a higher performance in terms of power and vacuum capacity than domestic vacuum machines. Many of these machines achieve vacuum capacities similar to the more expensive and bulkier vacuum chamber machines.

 

Suction and sealing system

• High-power pump: Professional machines are equipped with high-capacity pumps that can quickly remove air from bags, even continuously. The pumps can achieve a very high vacuum pressure, providing more effective suction than household models.
• Professional sealing: The sealing function is often more powerful and versatile than in household models. Many professional machines allow the intensity of the sealing to be adjusted according to the type of food or the material of the bag, ensuring a safe and airtight seal.
• Double sealing: Some professional machines offer the option of double sealing, i.e. sealing two parallel lines on the bag for added security and protection against air leaks.

 

Versatility and customisation

• Variety of bags: These machines are compatible with a wide range of vacuum bags and rolls of different sizes and thicknesses.
• Customisable settings: Professional vacuum machines often offer different modes for vacuuming and sealing to suit various types of food (meat, fish, vegetables, etc.). Some machines have specific programmes for delicate foods or for sous-vide cooking.
• Pressure control: Some more sophisticated models offer the possibility of adjusting the vacuum pressure and selecting the duration of the vacuum cycle, in order to achieve the ideal sealing level for each type of food or package.

 

Advanced Functionality

• Extraction function for containers: In addition to sealing bags, many professional machines also offer an extraction system for special containers, which allows vacuum to be created even in rigid containers, increasing the versatility of the device.
• Wet sealing function: Some advanced models are equipped with a function that allows moist food (e.g. fish or meat with sauces) to be sealed without compromising the sealing. The machine is designed to avoid liquid leakage during the sealing process. This can also be achieved by the presence of external filters.

 

Safety and Maintenance

• Security systems: Professional machines are often equipped with safety mechanisms to prevent misuse, such as protections against pump overheating or automatic shutdown systems in case of blockages.
• Compliance with specific machinery regulations for professional use: professional external suction vacuum devices are designed and certified to comply with the regulations in force in restaurants, bars, etc.
• Adequacy for cleanliness and HACCP protocolsThe materials used do not absorb food and are easy to clean, to comply with the health requirements of HACCP protocols

 

Continuous production and high capacity

• Continuous cycles: Professional vacuum packaging machines are designed to operate in continuous cycles, without the need for pauses or prolonged cooling. This makes them ideal for high volume production environments where speed is of the essence.
• High suction capacity: Professional machines can handle large capacity bags and quickly pack large quantities of food, ensuring effective air removal even in environments with high demands.

 

Professional external vacuum packaging machines are versatile, powerful tools designed to handle large-scale packaging operations.

They offer a range of advanced features and superior quality compared to domestic models, allowing optimal preservation of food freshness and saving time and resources in professional environments.