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Calcimator

Texture Profile Analysis Calculator

Calculate TPA parameters (hardness, cohesiveness, springiness, gumminess, chewiness) from two-cycle compression test data.

Inputs

Results

Hardness (N)

50

Gumminess (N)

37.5

Cohesiveness (ratio)0.75
Springiness (ratio)0.8
Chewiness (N)30
Adhesiveness (N·mm)5
Resilience (ratio)0.6
Compression strain (%)50
Fracturability0
Hardness Ratio0.8%
How to Use This Calculator
  1. Enter peak force for cycle 1 and cycle 2 in Newtons from your texture analyzer.
  2. Set the area under the curve for each cycle (N·mm), compression and recovery distances, adhesive area, and sample height.
  3. The calculator computes hardness, cohesiveness, springiness, gumminess, chewiness, adhesiveness, resilience, and compression strain.
  4. Compare computed TPA parameters against reference standards for your product category to assess texture consistency.

How the result changes with Peak force, cycle 1 (N)

Peak force, cycle 1 (N)Hardness (N)Gumminess (N)
1,0001,000750
3,5003,5002,625
6,5006,5004,875
9,0009,0006,750

What each input means

Peak force, cycle 1 (N)
Maximum force during the first compression cycle in Newtons. This is the hardness value.
Peak force, cycle 2 (N)
Maximum force during the second compression cycle in Newtons.
Area under curve 1 (N·mm)
Total positive work (area under force-distance curve) for the first compression.
Area under curve 2 (N·mm)
Total positive work for the second compression.
Compression distance 1 (mm)
Distance traveled during first compression (probe travel) in mm.
Recovery distance 2 (mm)
Distance recovered/traveled during second compression in mm.
Adhesive area (N·mm)
Area of negative force region between cycles (probe pull-off). 0 = not adhesive.
Sample height (mm)
Original sample height before compression, for strain calculation.

What each result means

Hardness (N)
Peak force during first compression. Higher = firmer texture.
Cohesiveness (ratio)
Ratio of work in 2nd to 1st compression (0–1). Higher = more cohesive.
Springiness (ratio)
Recovery ratio between compressions (0–1). Higher = more elastic.
Gumminess (N)
Hardness × Cohesiveness. Energy to disintegrate a semi-solid food.
Chewiness (N)
Gumminess × Springiness. Energy needed to chew a solid food to swallowable consistency.
Adhesiveness (N·mm)
Work to pull the probe from the sample surface. Higher = stickier.
Resilience (ratio)
Instant elastic recovery. Cohesiveness × Springiness.
Compression strain (%)
Percentage of original height compressed in the first cycle.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Peak force, cycle 1 (N) = 50, Peak force, cycle 2 (N) = 40, Area under curve 1 (N·mm) = 200, Area under curve 2 (N·mm) = 150 = 8 input(s) provided
  2. Calculate Hardness
    Hardness = peakForce1N
    50 = 50
  3. Calculate Gumminess
    Gumminess = hardness * cohesiveness
    37.5 = 37.5
  4. Calculate Cohesiveness
    0.75 = 0.75
  5. Calculate Springiness
    0.8 = 0.8

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