Tomato Color Measurement

Tomatoes are bred and selected for traits important to their specialized growing, harvesting, processing and consumption requirements, which also dictate their flavors, textures and other characteristics. Color, an important measurement parameter in tomato products, is closely related to quality and taste. In fact, the US Dept. of Agriculture has well defined indices that are used to grade processed tomato products around the world. HunterLab was the first company to receive USDA approval for the instrumental evaluation of tomato color. In fact, it is a HunterLab instrument that is used by the University of California-Davis to evaluate all tomato color measurement standards and as the reference against which all other instruments are measured. Our many valued customers include Heinz, Cargill, ConAgra Foods, Campbell's, Pacific Coast Producers, Kagome, Ingomar Packing and Del Monte.

Measure Color of Tomato Products

Common tomato products requiring tight color control include Tomato Paste, Puree, Sauce, Catsup and Juice. It is important when measuring the color of these products that the instrument chosen meets the requirements in accordance with USDA recommendations for the instrumental color measurement of tomato products and in accordance with the U.S. standards for grades of these products, and, as recommended by the USDA, is traceable to the UC Davis master standard.



Test Color of Tomato Products

Many of HunterLab's spectrophotometers are versatile enough to accommodate most applications of color measurement. However, based on 60+ years of experience and a thorough understanding of our customers' needs and product use, these particular instruments are most suited for this industries application.

ColorFlex EZ (Directional 45°/0° Geometry, Reflectance, 400-700 nm)

40% of our customers prefer this instrument because of its compact design and integrated display, so does not require a PC and external software.

Test Color with ColorFlex EZ

If you are unsure which instrument type is right for your samples, please call or email HunterLab technical support and we will be happy to assist you in making the proper instrument selection.

AN 1002

CIE Standard Observers and calculation of CIE X, Y, Z color values

CIE Standard Observers and calculation of CIE X, Y, Z color values.

AN 1005

Measuring Color using Hunter L, a, b vs CIE 1976 L*a*b*

Measuring Color using Hunter L, a, b vs CIE 1976 L*a*b*.

AN 1013

Averaging in Color Measurement

Averaging in Color Measurement.

AN 1018

Using Hitch Standardization on a Series of Color Measuring Instruments

Using Hitch Standardization on a Series of Color Measuring Instruments.

AN 1031 Identification of Measurement Parameters

Identification of Measurement Parameters

Identification of Measurement Parameters.

AN 1033 Color versus Appearance

Understanding the difference between measuring color and measuring appearance

Understanding the difference between measuring color and measuring appearance.

Food Industry Brochure

The trusted choice of the world's leading food processing companies

The trusted choice of the world's leading food processing companies.

HunterLab Solution Matrix

Geometry, Measurement Modes, and Indices

Geometry, Measurement Modes, and Indices.