BITING/CUTTING FORCE gives
an indication of the firmness/hardness of a product. If one considers
that if the top front teeth were pulled from a curve-shape into a
straight line they would represent a 'knife edge'. Using a knife
blade gives a close representation of the biting or cutting action.
Hardness/Firmness is commonly the textural property possessed by most
products the word 'toughness' or 'chewiness' may often substituted
for a textural property more associated with the product. Toughness
(or 'chewiness') is commonly the textural property possessed by meat,
fish and poultry products but also found to be named for baked
products such as tortillas, pancakes or pizzas. The toughness is
often taken as the total positive area under the curve. This
measurement effectively records the total 'work' involved in
performing this test. It therefore follows that a higher area value
indicates a higher amount of energy involved in performing the test
and subsequently is translated as a tougher sample to test.
Look at Hardness as the effort you
use to push your shopping trolley round the supermarket. The hardness
to push it is dependent on the shopping being added. The more
shopping you put in the harder it is to push i.e. the greater
force you have to apply. The toughness or work is the accumulated
effort of the whole journey around the supermarket from empty trolley
to the checkout! The descriptions Tenderness and Toughness are not
absolute. They have to be defined by agreement between the parties
using them. Tenderness maybe the inverse of toughness as perhaps
softness is the inverse of hardness.
properties that can be obtained from a texture analysis graph:
of shear, toughness, biting force, cutting force, hardness, firmness.
The above are only typical
examples of biting force/cutting force/toughness/chewiness
measurement. We can, of course, design and manufacture probes or
fixtures that are bespoke to your sample and its specific measurement.
Once your measurement is
performed, our expertise in its graphical interpretation is
unparalleled no-one understands texture analysis like we do.
Not only can we develop the most suitable and accurate method for the
testing of your sample, but we can prepare analysis procedures that
obtain the desired parameters from your curve and drop them into a
spreadsheet or report designed around your requirements.
Texture Analyser graph with
To discuss your specific test
here to email us.
We can all feel
it; let us show you how to measure it
click on the video to see an overview of Texture Analysis and
the properties it can measure...