BITING/CUTTING FORCE gives an indication of the firmness/hardness of a product. Bearing in mind that if a row of top front teeth were pulled from a curve into a straight line they would represent a 'knife edge', using a knife blade gives a close representation of the biting or cutting action.
TOUGHNESS – whilst Hardness/Firmness is usually the textural property possessed by most products, the word 'toughness' or ‘chewiness’ may be substituted for a textural property more associated with the product.
