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Cost Reduction and MAP Gas Savings

Tulip saves money with the new Dansensor® MAP Check 3 gas analyser and MAP Mix Provectus gas mixer

Tulip's MAP packaging lines

Tulip is one of Denmark’s leading producers of processed food for the domestic and export market, supplying sausages, bacon, soups, sliced meat and many other products. At its plant in Svenstrup near Aalborg the company produces around 90 tonnes of sausages each day. A large proportion of these – about 60 tonnes a day – is packaged under a modified atmosphere of carbon dioxide and nitrogen to keep the product fresh and improve its shelf life. This Modified Atmosphere Packaging (MAP) is carried out on 20 packaging lines.

More efficient gas flushing system

The company realised that its existing MAP gas flushing system was not efficient and that significant quantities of gas were being wasted. In addition, manual samples are taken at frequent intervals to ensure that the correct mixture is being introduced into the packages. This takes time and also incurs labour costs.

In a drive to improve efficiency and cut costs, the company invested in technology from MAP specialist Dansensor. Two new pieces of equipment from Dansensor have been installed on four of the packaging lines. These are the Dansensor MAP Check 3 gas analyser and Dansensor® MAP Mix Provectus gas mixer, which in tandem provide constant monitoring of the gas content and automatic adjustment of the gas flow for an improved quality and reduced cost of operation. At the same time the Dansensor MAP Mix Provectus and Dansensor MAP Check 3 offers a unique option to log quality assurance data on each packaging line, including information such as the gas content and the gas consumption. Other MAP-critical data can be stored in the units or a central database.

The perfect solution for testing the MAP gas composition

The impact of the new system has been impressive, says company engineer Thomas Jensen. “We have reduced gas consumption on these four lines by 30–40 per cent, which results in a direct saving of money. In addition we have been able to reduce our manual sampling by about half. This means that the people who do the sampling have more time to do other things in the factory so we are able to use our workforce more efficiently.”

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Extra benefits
Another key benefit of the system is the automatic data logging by the software. “This is a very useful feature,” says Mr Jensen. “We can look into the computer to see all the data for a day or a week or a month. If we do get a query from a customer we can go into the system and find where the problem occurred and how many packages may have been affected. This is not possible with the manual testing process.”

It is also good for customer relations. “When we show our customers the system, we can demonstrate that we have very close control over the process, with all the relevant information easy to obtain and to check back on,” Mr Jensen says. The system is, says Mr Jensen, simple to operate with only a couple of days needed to train staff.

Savings of costs and labour time
“Overall we are very, very pleased with the new analysis and mixing system,” Mr Jensen concludes. “It is simple to operate, it saves us money directly by using less gas, it saves us time on manual testing and not having to write things down on paper, and it gives us a very accurate computer record. It is not possible to say exactly how long it will take us to pay back on the investment, but certainly I would think within only a few years, and we will be looking to introduce the system to further lines in the future.”

  • Cost reduction with MAP Check 3

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