OBH NORDICA 7939 Food Sealer Prime Instruction Manual

: June 3, 2024
: OBH NORDICA

Table of Contents

OBH NORDICA 7939 Food Sealer Prime
Safety instructions
Main components
Use
Vacuum packing
Pulse function
General rules when handling food
Cleaning and maintenance
Troubleshooting
LIMITED GUARANTEE
Technical data
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

OBH NORDICA 7939 Food Sealer Prime

Safety instructions

Read the instruction manual carefully before use and save it for future use.
Plug the appliance to a household outlet of 220- 240 V only, and use the appliance only for the intended use.
Always unplug the appliance from the mains supply when not in use.
The appliance must not be immersed in water or any other liquids.
This appliance can be used by children aged 8 years and over and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge, if they have been given supervision or instruction concerning the use of the appliance in a safe way by a person responsible for their safety and they understand the hazards involved.
Children should be supervised to ensure that they do not play with the appliance. Children are not always able to understand potential risks. Teach children a responsible handling of electrical appliances.
Cleaning and maintenance shall not be made by children, unless they are over the age of 8 and supervised.
Keep the appliance and the cord out of reach of children under the age of 8.
Check that the cord is not hanging over the edge of the table.
Do not place the appliance on or near hotplates, open fire or the like.
The appliance should only be used under supervision.
Do not touch the heating element when it is hot.
Make sure that liquid is not aspirated into the pumping system of the appliance.
Only use original parts from OBH Nordica.
Always examine appliance, cord and plug for damage before use. If the supply cord is damaged, it must be replaced by the manufacturer, his service agent or a similarly qualified person in order to avoid a hazard.
For additional protection the installation of a residual current device (RCD) with a rated residual operating current not exceeding 30 mA is recommended. Ask your installer for advice.
The appliance is for domestic use only.
If the appliance is used for other purposes than intended or is it not handled in accordance with the instruction manual, the full responsibility for any consequences will rest with the user. Any damages of the product are not covered by the warranty.

Prolong keeping quality and save both time and money

Oxygen is fresh food’s worst enemy and the biggest reason that it loses nutrients, consistency, taste and quality. Oxygen also causes freezer burns on food stored in the freezer and enables the development of micro-organisms. This is why the use of conventional storage methods such as storage in regular plastic bags and containers is not ideal because these solutions actually lock in the air together with the food.
Vacuum packing removes the oxygen, thereby sealing in the taste and keeping the food fresh longer. Removing oxygen and storing food properly in either the refrigerator or freezer can also inhibit the growth of micro-organisms that can later develop into mould, yeast and bacteria.

OBH Nordica Food Sealers let you store food up to five times longer than with conventional storage methods. This means that you can:

Save money by buying economy or family size packages and vacuum pack them for later use – no waste.
Save time by preparing large portions and freezing in portion sizes straight in vacuum bags.

In bags compared to non-vacuum packed storage (internal study on fresh fruit and vegetables, Sept. 2021).

Important!

Vacuum packing is not the same as preserving and cannot prevent food
from getting old; however, it can delay the process. Vacuum packing is not a substitute for refrigeration and freezing. Chilled goods must still be stored in a refrigerator or freezer after vacuum packing.
If the temperature in the refrigerator is above +4°C for an extended period of time, it promotes the formation of harmful micro-organisms. The temperature should therefore be below +4°C. Food can advantageously be stored in the freezer (preferably at -17°C or lower). Even if it does not kill all micro-organisms, it inhibits their growth.

Main components

OBH-NORDICA-7939-Food-Sealer-Prime-fig-3

VAC &SEAL – for vacuum packing and sealing.
MODE – adjusts the time for the vacuum process.
Dry – provides shorter sealing time for dry produce without moisture (preset time is “Dry”).
Moist – provides longer sealing time for wet or moist produce.
SEAL – this button has two functions:
for sealing of plastic made from rolls.
during vacuum packing (VAC&SEAL), this button stops the pump immediately and then seals the bag.
PULSE – press the button shortly to start vacuum packing. Repeat until the desired results have been achieved. Then press “SEAL” to seal the bag.
CANCEL – stops an on-going process.
Handle – open or closes the cover.
Sealing strip – seals the bag (can be replaced).
Gaskets
Cutter – push and pull the cutter lever along the roll to the desired length.
Air intake – do not cover the intake with the vacuum bag when vacuum packing/sealing.
Bag holder – directs the bag opening down into the vacuum channel.
Vacuum duct – place the bag opening in the vacuum duct. The air is sucked out of the bag and the vacuum duct captures any fluid from the bag.
Sealing unit – seals the vacuum bag.
Removable drop tray for easy cleaning.

Use

Produce a vacuum bag from a plastic roll
Place the device on a flat surface and plug it into a wall socket. All signal lamps light up shortly and then switches off, except for the Dry lamp that continues to light.

Open the lid. Place the bag roll in the holder. Pull out the plastic to an appropriate length and place it under the cutting lever. Adjust the length so that there is at least 7 cm between the bagâ€™s contents and the opening of the vacuum bag. Cut off the plastic with the cutter. Only use plastic rolls from OBH Nordica.
Place the short end of the plastic over the sealing unit and down into the vacuum duct, make sure the entire short end reaches down into the vacuum duct.
Close the cover and lower the handle so that the cover closes properly.
Press the SEAL button to begin sealing; the signal lamp turns on. When the SEAL lamp turns off, the sealing is complete.
Lift the handle to open up the cover of the device. Remove the finished vacuum bag. The vacuum bag is now ready to use for vacuum packing.

Important tips when vacuum packing

Do not put in too much ingredients in the vacuum bag. Leave at least 7 cm between the contents of the vacuum bag and the bag opening.
Make sure that the vacuum bag is dry in the opening, as the bag will not be properly sealed otherwise. One tip is to fold down the edge around the bag before putting the produce in the bag so that the top of the bag stays dry/clean. Then fold the edge again before closing.
Extend the bag opening before it is placed against the sealing unit to remove any folds and unevenness.
Do not place sharp objects such as fish bones and hard shells in the vacuum bag as they may penetrate the bag.
During the vacuum packing process, liquid and other particles can unintentionally end up in the vacuum pump, which can clog the pump and damage the device. To prevent this, we recommend that liquid contents be frozen in freezer-resistant containers before it is vacuum packed in a vacuum bag.
Also refer to the section â€œPreparation guide for various kinds of produce.
If you are going to vacuum pack meat or other moist contents, some paper towels can be placed between the contents and the bag opening. When vacuum packing flour, grain and other powder contents, a coffee filter can be placed between the contents and the bag opening. Make sure the paper/filter is not placed in the seal.
Note that vacuum packed perishables must be stored in the refrigerator or freezer. Remember that vacuum packing is not the same thing as preserving, but rather only extends the shelf life.
Keep in mind that food that has a high fat content can spoil if it is stored too warm.
Vacuum packing of fruit and vegetables, such as apples, bananas, potatoes and root vegetables does not extend their shelf life if they are not peeled first.

Vacuum packing

Vacuum packing with a vacuum bag

Place the device on a flat surface and plug it into a wall socket. All signal lamps light up shortly and then switch off, except for the Dry lamp that continues to light.

Place the contents to be vacuum packed in a vacuum bag, leaving at least 7 cm between the contents and the opening of the vacuum bag. Only use vacuum bags/plastic rolls from OBH Nordica.
Make sure the opening of the vacuum bag is clean, dry and free from folds.
Place the vacuum bag opening over the sealing unit and down in the vacuum duct. Make sure that the air intake is not covered by the vacuum bag.
Close the lid and press the handle down until you hear a clicking sound.
Select sealing time depending on vacuum packing: select Dry for dry contents and Moist for delicate/moist contents using the MODE button.
Press the VAC&SEAL button, the signal lamp lights up and the vacuum process begins. When the vacuum process is complete, the device will seal the bag and the SEAL lamp will light up. When the sealing process is complete, the light turns off, except the Dry or Moist lamp.
Note: This device achieves a very high vacuum pressure during the vacuum packing process. To keep delicate contents from begin ruined by the high pressure, keep an eye on the vacuum bag and press the SEAL button if you want to stop the process earlier. The device then stops pumping and begins sealing the vacuum bag.
Lift the handle and open the cover of the device. Remove the bag with the vacuum packed contents.
Dry off any liquid and particles in the vacuum duct after each vacuum packing process.
Be sure that no liquid is sucked into the device. Damage arising from this is not covered by the right of return.

Pulse function

This function is used mainly for vacuum packing when a small vacuum force is desired, such as for tomatoes, crisps or the like. Or when vacuum packing moist produce or sauces when one wants to remove only a little air from the bag and then stop the process before the liquid is compressed.
Then press the PULSE button repeatedly until the desired result is reached. Then seal the bag by pushing the SEAL button. When the light goes out, the bag is sealed.
After use, unplug the device from the wall socket. DO NOT close the handle of the device, as this prevents the gaskets from deforming, which may affect the operation of the device.
Thawing and heating of vacuum packed contents in vacuum bags
The vacuum bags from OBH Nordica can be used in a microwave oven and can also be simmered in water.

Open the bag by cutting off a corner of the bag so that air can enter if the vacuum bag is to be thawed/warmed in a microwave oven. The bags are only intended for thawing/heating and sous vide.
The filled bag can be warmed up by placing it in a pot of simmering water.

NOTE! Never re-use bags that have been used in a microwave oven or have been simmered in water.
NOTE! Do not directly cook raw foods in the bag by microwaving.
NOTE! Do not microwave foods containing a lot of oil, as oil will get hot very quickly and could cause the sides of the bag to stick together.

Marinate under vacuum pressure

The marinating process is hastened if carried out under vacuum pressure since the vacuum pressure opens the pores of the produce and thereby absorbs the marinade faster. This means that marinating only takes a few minutes instead of hours.

Marinating in a vacuum bag

Pour the marinade in a vacuum bag together with the produce and vacuum pack according to earlier descriptions. Be careful to add enough marinade
so that it covers all of the contents. For best results, marinate for at least 30 minutes before you cut up the bag.
Preparation guide for various kinds of produce

Meat and fish:

For the best results, the produce should be pre-frozen for around 1-2 hours before they are vacuum packed to retain succulence and texture. If it is not possible to pre-freeze the produce, place a paper towel between the meat/fish and the bag opening. Be careful that the paper does not end up in the seal.
The pulse function is recommended when vacuum packing moist ingredients. Finish with manual sealing by pressing the “SEAL” button once the preferred vacuum pressure is obtained.
Note that the meat may look darker when it has been vacuum packed since the oxygen is removed during the process.

Vegetables:

Vegetables should be blanched before they are vacuum packed since all vegetables emit gases during storage. Blanching also stops the enzyme process that can make the vegetables lose colour and taste.
When vegetables are to be frozen, they should first be pre-frozen for 1-2 hours. Separate them out on a piece of baking paper or the like to keep them from freezing together in a clump. Then place the frozen vegetables in a vacuum bag and vacuum seal the bag. Then place the vacuum bag in the freezer.
NOTE! Fresh mushrooms, onions and garlic should never be vacuum packed due to the risk of anaerobic bacteria.

Fruit:

Fruit with a peel should be peeled before being vacuum packed. Feel free
to pre-freeze fruit for 1-2 hours before being vacuum packed. Spread them out on a piece of baking paper or the like so they do not freeze together in a clump. Then vacuum pack them in a vacuum bag and place in the freezer.

Baked goods:

Pre-freeze the baked goods for 1-2 hours before hand. Of course, pastry dough, pies and cake mixes can be vacuum packed for later use.

Hard cheese:

To keep cheese fresh, vacuum pack it if you are not going to use it for a few days. Take an extra large vacuum bag so that you can re-use the bag if you want to vacuum pack the same cheese again. NOTE! Soft cheese should not be vacuum packed due to the risk of anaerobic bacteria.

Powder and flour:

To keep particles from entering the vacuum pump, a coffee filter or paper towel should be placed between the contents in the vacuum bag and the bag opening. Make sure that the filter/paper does not enter the seal. You can also vacuum pack the contents in their original packaging by putting the original package and its contents in a vacuum bag and then sealing the vacuum bag.

Liquids:

Before you vacuum pack liquid, such as soup or broth, pre-freeze the liquid in a freezer-resistant container or ice cube form until the liquid is completely frozen. Then remove the frozen liquid from the form and vacuum pack it in a vacuum bag. Then place the vacuum bag in the freezer.

General rules when handling food

Always wash your hands, surfaces and other utensils that will be used when handling and vacuum packing the food.
As soon as you have packed perishables, they should be promptly refrigerated or frozen; do not store them at room temperature.
Produce that has been warmed or thawed should be promptly consumed.
Tinned food or factory vacuum packed food that has been opened can be vacuum packed again. Follow the instructions in the user manual and store the produce as recommended.
Do not eat thawed produce that has been stored at room temperature for more than 5 hours.
Spread the vacuum packs out in the refrigerator or freeze so that they are cooled faster.
Note that vacuum packaging is not the same as preservation.

Cleaning and maintenance

Always unplug the device prior to cleaning and maintenance.

Cleaning the device:

Do not dip the device or its cord into water or other liquids.
Do not use scouring cleaners as the material may be damaged.
Use a moist cloth and some mild washing-up liquid to remove food particles and dust from around the device’s components. Wipe dry with a towel or the like.
Wipe the Teflon Seal Strip with a damp cloth. The gaskets can be carefully removed from the device for cleaning. Rinse them in water and let them dry properly before they are put back on. Be careful to place them correctly so that air does not leak upon use. Should a gasket break, it must be replaced with a new one (which can be ordered from OBH Nordica at +46-8-629-2500).

Cleaning vacuum bags:

Wash the vacuum bags in warm water and a little washing-up liquid.
If the vacuum bags are to be washed in a dishwasher, turn the vacuum bags inside out and place them in the upper basket of the dishwasher so that the entire bag’s surface comes in contact with water.
Let the vacuum bags dry properly after cleaning.

NOTE! Due to the risk of infection, never re-use vacuum bags that have contained raw meat, raw fish or fat. Never re-use bags that have been used in a microwave oven or have been simmered in water.

Storage:

Store the device on a level surface out of reach of children.
DO NOT push down the cover so that it locks for storage; this is to prevent the device’s gaskets from becoming deformed.
The cord can be rolled up in the cord holder under the device. Do not wrap the cord around the device.

Troubleshooting

Problem	Cause/solution
Nothing happens when I try to vacuum seal the bag.	Check that the device is

plugged in to a wall socket.

Check if there is any damage to the cord.

Check that the vacuum bag is correctly placed in the device (see earlier instructions).

The device does not seal the vacuum bag after the vacuum process.| There is a built-in vacuum sensor in the device. The device does not switch over to sealing if sufficient pressure has not been achieved in the vacuum process.

Check the sealing unit’s teflon strip and remove any dirt.

Check the gaskets and remove them for cleaning if necessary. If they are damaged, they need to be replaced with new ones.

The vacuum bag may leak. Check the bag by sealing it with a little air and then lowering it into water. If bubbles come from the bag, it is leaking. Reseal the bag or use a new one.

Dirt or liquids in the bag opening can make it difficult to seal the bag. Open the bag and wipe off around the opening before it is placed level over the sealing unit.

---|---
There is air left after the vacuum packing process.| Leaks along the seal may be due to folds, liquid or particles. Wipe off the bag opening/cover before sealing is begun. Dirt or liquids in the bag opening can make it difficult to seal the bag. Open the bag and wipe off around the opening before it is placed level over the sealing unit.

Make sure the bag opening is over the sealing unit and in the vacuum channel.

Check that the gaskets are whole, clean and positioned

correctly.

The vacuum bag may leak. Check the bag by sealing it with a little air and then lowering it into water. If bubbles come from the bag, it is leaking. Reseal the bag or use a new one. Only use vacuum bags from OBH Nordica.

Check if there are holes in the vacuum bag. Do not vacuum pack contents that can damage the bag (such as fish bones, hard shells, etc.).

It is recommended to leave around 7 cm between the produce and the bag opening. But, if there is too much air between the produce and the bag opening, it may be

difficult to get all the air out of the bag during the vacuum packing process. If so, a piece of the bag can be cut off to make it shorter.

Air enters the bag after sealing.| Leaks along the bag edge can be caused by folds, crumbs, food, etc. Open the bag again and wipe the inside of the bag opening clean. Extend the opening before it is placed over the sealing unit.

Natural gases can be released from fruit and vegetables. Dispose of the bag with the contents if you suspect that the produce is spoiled.

Check if there are holes in the bag. Do not vacuum pack hard produce with sharp edges (such as nutshells), but if so, wrap them in paper towels before they are vacuum packed.

---|---
The vacuum bag melts.| Open the cover of the device and let the sealing unit cool a

few minutes.

Only use bags and plastic rolls from OBH Nordica.

Disposal of the appliance

By law, electrical and electronic equipment must be collected for the recycling of components. Electrical and electronic equipment marked with the waste management symbol must be disposed of at a municipal recycling point.

LIMITED GUARANTEE

The Guarantee

OBH Nordica guarantees this product against any manufacturing defect in materials or workmanship during 2 years within Sweden, Norway, Denmark and Finland, starting from the initial date of purchase or delivery date.
This manufacturer’s commercial guarantee covers all costs related to restoring the proven defective product so that it conforms to its original specifications, through the repair or replacement of any defective part and the necessary labour. At OBH Nordicas choice, a replacement product may be provided instead of repairing a defective product. OBH Nordicas sole obligation and your exclusive resolution under this guarantee are limited to such repair or replacement.

Conditions & Exclusions

OBH Nordica shall not be obliged to repair or replace any product which is not accompanied by a valid proof of purchase. The defective product may be returned to the store of purchase.
This guarantee applies only for products purchased and used for domestic purposes and will not cover any damage which occurs as a result of misuse, negligence, failure to follow OBH Nordica instructions, or a modification
or unauthorised repair of the product, faulty packaging by the owner or mishandling by any carrier. It also does not cover normal wear and tear, maintenance or replacement of consumable parts, or the following:

using the wrong type of water or consumable
mechanical damages, overloading
damages or poor results specifically due to wrong voltage or frequency as stamped on the product ID or specification
ingress of water, dust or insects into the product
scaling (any de-scaling must be carried out according to the instructions for use)
damage as a result of lightning or power surges
damage to any glass or porcelain ware in the product
accidents including fire, flood, etc
professional or commercial use

Consumer Statutory Rights

OBH Nordica’s commercial guarantee does not affect the Statutory Rights a consumer may have or those rights that cannot be excluded or limited, nor rights against the retailer from which the consumer purchased the product. This guarantee gives a consumer specific legal rights, and the consumer may also have other legal rights which vary from Country to Country. The consumer may assert any such rights at his sole discretion.
These instructions are also available on our website www.obhnordica.com.
TEFAL – OBH Nordica Group AB Löfströms Allé 5 SE-172 66 Sundbyberg
Phone : +46 8-629 25 00
www.obhnordica.com