PET Food Processing - June 2020 - 36

A healthy partnership for all
your Freeze Dried Pet Applications.

FORMULATION

Processors can achieve a
wide range of innovative
product formats with cold
extrusion systems.
Sosland Publishing Co.

Pets are an important part of the family! That's why pet
parents look for pet food that is clean, safe, delicious
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Kansas City, MO - Booth 217

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"Coextrusion is the most
common application into
an oven for developing a twodough type pet treat," Pallottini
said. "Coextrusion for pet treats
normally requires a similar inner filling and outer jacket in order to create a nicelooking product. If you do go with a jelly-type inner filling,
this needs to be heat stable in order to prevent bleeding."
Mark Martin, test lab supervisor for Urschel Laboratories,
said Urschel cutting machinery can produce clean-cut strips
and dices  and irregular shaped strips and shreds, which is
achieved with a series of rotating spindles.
Spannbauer said the adjustable vane cell design of the
Handtmann vacuum filler is well suited to cold extrusion
because, among other reasons, friction is reduced with the
product path being much shorter than with auger systems.
"Handtmann fillers also operate very efficiently at -2 C to
+5 C, and minimize temperature rise to help maintain consistency and quality," he said.
Additionally, Handtmann Rotary Cutting Systems  for
pet food offer knife and wire cutting options in configurations up to 24 lanes and speeds up to 1,440 cuts per minute.
Handtmann Multi-lane extruding solutions produce dimensionally stable kibble and treat products with gram-sensitive
accuracy across all lanes at up to 250 cuts per minute.
 

Unique challenges

Cold extrusion formulating and processing for pet food
and treats does not come without some issues, Zeak shared.
Challenges can include the temperature of material being extruded, which can affect the viscosity or consistency of the
product and its ability to hold its own shape, thus impacting
the performance of the machinery and the extrusion process.
Extremely viscous formulations can be difficult to feed into the
double screw and bridging can occur with just gravity alone. 
Spannbauer noted as well that a key challenge is getting and
keeping the material stiff enough through the entire process so
it can form and maintain shape.
"Having equipment that can distribute binders evenly and
efficiently to thicken up the filling material is important, as is
the ability to accept CO2 snow and distribute it efficiently to
chill product to optimal levels for forming," he said. "Creating
reliably homogeneous batters is important to keep the smaller
extrusion ports open and production moving."
Altom noted product stability and moisture loss in fresh
meats prior to processing can also be a challenge.
"This is because of a potential delayed time between

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PFP_Jun20.indb 36

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PET Food Processing - June 2020

Table of Contents for the Digital Edition of PET Food Processing - June 2020

PET Food Processing - June 2020 - 1
PET Food Processing - June 2020 - 1
PET Food Processing - June 2020 - 2
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http://digital.petfoodprocessing.net/sosland/pfp/2020_03_01
http://digital.petfoodprocessing.net/sosland/pfp/2019_12_01
http://digital.petfoodprocessing.net/sosland/pfp/2019_10_01
http://digital.petfoodprocessing.net/sosland/pfp/2019_09_01
http://digital.petfoodprocessing.net/sosland/pfp/2019_06_01
http://digital.petfoodprocessing.net/sosland/pfp/2019_03_01
http://digital.petfoodprocessing.net/sosland/pfp/2018_12_01
http://digital.petfoodprocessing.net/sosland/pfp/2018_09_01
http://digital.petfoodprocessing.net/sosland/pfp/2018_06_01
http://digital.petfoodprocessing.net/sosland/pfp/2018_03_01
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