SUCUK - Big opportunity for CRF casing

Every company in the world is looking for challenges and new opportunities. Now and then it happens that a wild thought becomes a bull’s-eye shot. That’s the case with ViskoTeepak Fibrous CRF. The CRF casing is designed for the global non-edible collagen market, of which the biggest segments are in Russia, Eastern and Southern Europe. The matte appearance of CRF enhances the possibilities with respect to various applications. Historically, people from these regions are accustomed to non-edible collagen casing for some applications, so it was challenging to find a reasonable casing that would be accepted in the market. Ultimately, we succeeded.

Fibrous CRF casing

Fibrous CRF casing is an extremely light-weight casing with the strong characteristics of a fibrous casing combined with the profile of a collagen casing.


  • Clipability
  • Water soaking instead of brine soaking
  • Strength
  • Strand length and shirring capabilities
  • RTU (Ready to Use)
  • Availability
  • Consistency
  • Peelability


As the product was about to be introduced, we didn’t fully imagine the unique opportunities that the CRF casing would have in other uses. Consider the Sucuk application. This Turkish product is a dry, spicy sausage mainly made of beef. Typical of Sucuk is the au pair presentation. Sucuk is rarely eaten raw but is nearly always baked. An advantage of this is that the sausage doesn’t have to be baked with oil and has enough of its own fat. The product is cut into slices or pieces and baked. Often with an egg, that is seen as the combination. During breakfast, it’s used in the same way that bacon is in the West. Sucuk can be eaten at breakfast, lunch or dinner and even as a snack.

The Result

A calculation performed at a customer’s site showed a dramatic advantage in regard to Fibrous. The shirring optimization by adjusting the strand from 25 meters to 35 meters with the same stick length produced the following benefits:

  • Fewer strand changes on the machine, for a time savings of 22 minutes per day
  • A time savings of 22 minutes gives space for a capacity jump of 650 kg per day (additional 2.8%)
  • Less storage space for strands (minus 40%)
  • Less soaking space if the customer doesn’t use the RTU facility

Additionally, there is a positive effect on the peeling thanks to the more controllable meat cling provided by Fibrous. CRF also brings more consistent quality compared to collagen casings, as the character of the collagen tends to vary over the course of the year. This will affect the stuffing performance the same way, producing less uniform stuffing. Another benefit worth mentioning is that you can skip the brine-water soaking with CRF. It’s commonly known that the brine water has a negative effect on the machinery. This increases the maintenance requirements, resulting in more unexpected stops and a shorter life cycle. 

Commercially it’s a big success, as the end customer seems to prefer the fibrous performance. The peelability is much easier when we consider the casing tearing and the sausage-meat cling.

Given the expanding Muslim population, ViskoTeepak is convinced that there’s a great future for this application.