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Confinement odour and blood drip in vacuum packed meats are a main cause of complaints for supermarkets, especially on export meats such as beef and lamb.
Krehalon’s newly developed SSL™ Plus technology takes Secondary Seal (SSL™) to the next level by reducing confinement odour and introducing fat adhesion properties that improve blood drip control and enhance product presentation of vacuum-packed meats over extended shelf life.
SSL™ Plus uses special sealant materials to allow the inner packaging layers to fuse together through the normal production processes of vacuum packing and hot water shrinkage.
In order to prove the odour reduction and shelf life benefits of SSL™ Plus, Krehalon initiated an independent study in association with Campden BRI which focused on fresh lamb applications, comparing SSL™ Plus performance versus that of standard shrink bags.
Testing was carried out on 700 lamb legs packed in Krehalon’s SSL™ Plus in order to determine potential shelf life extension, blood drip loss and confinement odour reduction benefits over standard sealing shrink bags.
Products were stored at 0°-3°C for 28 days and then split into ‘Commercial’ and ‘Retail’ temperature abuse trials. Details of the full case study can be found below.
SSL™ Plus proved significant odour reduction compared to standard bags over shelf life.
SSL™ Plus reduced confinement (gamey and stale blood) odour associated with long-life vacuum-packed meats (refer to case study document for details on the sensory analysis).
SSL™ Plus improved visual appearance of the lamb legs at end of life through:
SSL™ Plus offered potential for shelf life extension.
This study proved that there are higher levels of bacteria in the meat blood compared to the meat surface, due to more nutrients being readily available in the blood for growth. As such, it is believed that by controlling blood movements within the pack, SSL™ Plus is able to reduce overall bacteria counts and delay meat spoilage.
SSL™ Plus packs showed:
Thinner but stronger