Preservation of food has been a vital process even in history when the only food preservations methods were drying, use of honey, salting, etc. Over the years, many and better techniques have come up, i.e., refrigeration, to promote an even longer shelf life. Even with all these preservation methods, there was still a need for another way to extend food freshness for a longer time so that both retailers and manufacturers prevent wastage.
Vacuum sealing was the solution they found, and ever since, it has been improving to include many other benefits in both preservation and cost. Curious to find out more, let’s dive right in!
Vacuum sealing involves the process of eliminating oxygen from a food container and sealing it tightly with no leakages. The process takes place in a vacuum chamber in a sealing machine to preserve food for a long time. Why is oxygen removed? Oxygen permits the growth of various microorganisms such as fungus, bacteria, and mold. These organisms are usually responsible for food spoilage as they accumulate and make the food taste bad.
Moreover, when ingested, they cause food poisoning that may become very serious, leading to complications. Removing oxygen prevents all these from happening as these microorganisms are aerobic and cannot survive without oxygen. Vacuum sealing is becoming very popular in the packaging industry, especially those dealing with food products.
Some of the most prominent considerations for shelf life are vacuum packed vegetable shelf life, vacuum-sealed meat shelf life, and vacuum-packed food shelf life. Retailers, restaurants, and consumers are always keen when dealing with such products as these are the most used canned products. The table below compares normal and vacuum packaging by illustrating the shelf life of different foods at various temperatures.
|Kept in freezer||Normal packaging||Vacuum packed|
|Fresh vegetables||Eight months||24 months|
|Fresh meat||Six months||18 months|
|Fruits||6 - 10 months||18 - 30 months|
|Baked products||6 - 12 months||18 months|
|In a refrigerator||Normal packaging||Vacuum packaging|
|Fresh vegetables||Five days||18 - 20 days|
|Fresh meat||Two days||Six days|
|Fresh fruits||3 - 7 days||8 - 20 days|
|Cooked food||Two days||Ten days|
|Room temperature||Normal packaging||Vacuum packed|
|Dried food||10 -30 days||30 - 90 days|
|Baked goods||2- 3 days||7 - 10 days|
|bread||2- 3 days||7 - 8 days|
|snacks||5-10 days||20 - 30 days|
Food packaging at home doesn’t have to be challenging, especially when using a jar vacuum sealer machine. You can store food in glass jars to preserve its integrity for a while when not using them. The steps in doing so are;
Cans are among the most popular containers used in the packaging industry. Packaging industries use can seaming machines that have vacuum chambers. They include;
A pouch is a bag usually made of paper or plastic, primarily for packaging purposes. Pouch packaging machines work through the following steps:
In today’s society, people are busy working day and night with others taking up three jobs to make ends meet. It is a fast society in which everything has to be quick and straightforward. People barely have time to go shopping for groceries, and vacuum sealing is the savior amidst all this chaos. Since vacuum-packed food has a long shelf life, you only need to do shopping once in a while and buy items in bulk.
If this life describes you, you need to order your vacuum sealer now from Levapack, or better yet, buy a packaging line from us for your company as we guarantee quality services and products. Get in touch with us for more insights.