'Mouthfeel' is a product’s physical and
chemical interaction in the mouth. It is a concept used in many areas related to the testing and evaluating of foodstuffs, such as
wine-tasting and
rheology. It is evaluated from initial perception on the
palate, to first bite, through
mastication to
swallowing. In wine-tasting, for example, mouthfeel is usually used with a modifier (big, sweet, tannic, chewy, etc.) to the general sensation of the wine in the mouth.
Modifiers of foodstuffs
Common modifiers in relation to the texture of foodstuffs include:
★
Adhesiveness,
Force required to remove the material that adheres to a specific surface (e.g.,
lips,
palate,
teeth).
★
Bounce/Springiness: The resilience rate at which the sample returns to the original shape after partial compression.
★
Chewiness: Number of
chews (at 1 chew/sec) needed to masticate the sample to a consistency suitable for
swallowing.
★ Coarseness: Degree to which the mass feels coarse during product mastication.
★ Cohesiveness: Degree to which the sample
deforms before rupturing when biting with
molars.
★ Denseness: Compactness of cross section of the sample after biting completely through with the molars.
★ Dryness: Degree to which the sample feels
dry in the mouth.
★ Fracturability:
Force with which the sample crumbles, cracks or shatters. Fracturability encompasses crumbliness,
crispiness, crunchiness and
brittleness.
★ Graininess: Degree to which a sample contains small
grainy particles.
★ Gumminess:
Energy required to disintegrate a semi-solid food to a state ready for swallowing.
★ Hardness: Force required to deform the product to given distance, i.e., force to compress between molars, bite through with incisors, compress between tongue and palate.
★ Heaviness:
Weight of product perceived when first placed on tongue.
★ Moisture absorption: Amount of
saliva absorbed by product.
★ Moisture release: Amount of wetness/juiciness released from sample.
★ Mouthcoating: Type and degree of coating in the mouth after mastication (for example,
fat/
oil).
★ Roughness: Degree of
abrasiveness of product's surface perceived by the tongue.
★ Slipperiness: Degree to which the product slides over the tongue.
★ Smoothness: Absence of any particles, lumps, bumps, etc., in the product.
★ Uniformity: Degree to which the sample is even throughout.
★ Uniformity of Chew: Degree to which the chewing characteristics of the product are even throughout mastication.
★ Uniformity of bite: Evenness of force through bite.
★
Viscosity: Force required to draw a liquid from a spoon over the tongue.
★ Wetness: Amount of moisture perceived on product's surface.
References
★ Dollase, Jürgen, ''Geschmacksschule [engl.: Tasting School]'', 2005 Tre Tori, Wiesbaden, Germany (ISBN 3937963200). German language textbook by a renowned food critic covering some, but not all of the above mentionend properties/mouthfeelings.
See also
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Wine tasting
★
Food