Packaging Solutions FAQ
| The color of meat, beef in particular, darkens as a result of vacuum packaging. Can anything be done to avoid this? | |
|
|
The change in color is caused by the removal of oxygen. The meat |
| Can upright pouches be evacuated and sealed on Multivac machines too? | |
|
|
Yes. Small pouches can be loaded at a slight angle and sealed on almost all Multivac chamber machines. Multivac supplies the AGV model, in which the pouch is sealed upright, for bulk packs. |
| Can I package my ready meals with a chamber machine? | |
|
|
Yes. - Meal components are, for example, filled in the pouch, sealed in a vacuum and stored cool or are given a longer shelf life by being pasteurized in the pouch, if this is required. - Caterers prepare portions or larger units that can be stored in sealed pouches and used in busy periods. - Platters and trays can be prepared completely and then sealed in a pouch.For extended storage periods, evacuation and inert gas flushing can be used. |
| Can preserved food packs be produced on Multivac machines? | |
|
|
This is possible with a sterilizable aluminium laminate and suitable machine equipment. Preserved food packs can be produced in small quantities with pouches on chamber machines. Reels of aluminium laminate can be formed into shallow pockets on automatic thermoforming machines. The packs are sterilized in counterpressure autoclaves. They have a shelf life of a year or longer and are superior to classic preserved food with respect to their taste and weight. |
|
Preserved food and other packs on one machine - is that possible? |
|
|
|
Yes. Fresh, frozen and preserved food products can be packaged alternately on the same machine. |
| Can I package my meals in an aluminium tray? | |
|
|
Yes, there are two possible ways to do this: - Either you package your trays in flexible film (pouch or thermoformed pack). - Or you seal the aluminium trays on a traysealer. |
| Can I package liquids, e.g. water, on a traysealer? | |
|
|
It is possible; you can even package live fish to guarantee that they are transported gently. |
| We are looking for an attractive vacuum pack for hard cheese. What does Multivac have to offer us? |
|
|
|
The Formshrink process highlights the shape of your product ... You will find detailed information here ... |
| What packaging solutions are there for cut salad? | |
|
|
There is a new process for this that is carried out specially on Multivac machines. Detailed information with photos |
| Our company processes various kinds of vegetables. Can we package all our products on a single machine? |
|
|
|
Yes, if sizable quantities of one kind can be packaged in the same pack format in each case. When the pack formats differ and small quantities are involved, the changeover times may be a problem ... Please talk to our experts. |
| Does it make sense to package compact discs and DVDs on a rollstock machine? |
|
|
|
A sealed pack provides tamper evidence. Thermoformed packaging is advisable for this reason alone. CDs and DVDs are suitable for loading by an automatic unit. Large quantities can be packaged per day on automatic thermoforming machines. |
| We produce electronic components. They can be destroyed by electrostatic discharge. Can Multivac produce antistatic packs and / or process antistatic packaging material? |
|
|
|
Yes. Antistatic, sealable films are available on the market. Please |
| Can food be packaged aseptically on Multivac machines? | |
|
|
No. Automatic thermoforming machines and traysealers can, however, |
| If I do not want a vacuum pack, does a Multivac machine still make sense? |
|
|
|
Definitely. Packaging can be carried out in a vacuum, in a modified atmosphere or in a normal atmosphere on Multivac machines. Your |
| Preserved food and other packs on one machine - is that possible? | |
|
|
Yes. Fresh, frozen and preserved food products can be packaged |
| Can one have sample packs produced by Multivac? | |
|
|
Yes. The Multivac application service specialists have sound product and packaging material know-how and are in contact with relevant institutes as well as the film manufacturers' laboratories. Multivac produces small quantities of packs with the functions you specify for your marketing tests. Please ask your Multivac representative for details. |
| Is there a list that shows the shelf lives of packaged products? | |
|
|
There are of course figures that are based on past experience, but no universally valid information: the shelf life of some food products depends on their quality and the bacteriological conditions when they were produced. Please contact the relevant institutes that investigate the shelf lives of your products in their laboratories. |
| Is there a list of gas mixtures for packs with a modified atmosphere? | |
|
|
Yes. The inert gas suppliers have compiled recommendations for a wide range of products. They can be found in the Internet. |
| Why should an inert gas atmosphere be chosen? | |
|
|
Like in the air we breathe, the basic components of the inert gas atmosphere are nitrogen, carbon dioxide and oxygen. In a specific mixing ratio, they compensate for the difference in pressure between inside and outside, so that products like fresh pasta stay loose, retain their shape and do not stick together. The shelf life is extended, the formation of bacteria and mould is inhibited, the microflora are stabilized. Inert gas also helps to maintain the color of fresh meat, for example. |
| Can products containing air be packaged in a vacuum? | |
|
|
Care needs to be taken when packaging products containing air such as mayonnaise, ground coffee, grated cheese, meat loaf or cook-in ham, because the trapped air expands as the ambient pressure level decreases. In these cases, Multivac equips your machine with units for gentle evacuation or for displacing the air by steam or a flushing gas. Examples of this are MHP evacuation - an intermittent evacuation process - or the SFP process. |
