+86 (0)571 85888707
You Are Here:Home >> Solution >> Food Industry
Food Industry
Solution

Fruit Colorimeter Fruit Surface Color Measurement

Food Industry | 2017-10-28 14:03:39

We receive some customers’ inquiry for measuring the surface color of fruit and vegetables such as apples, lemons, grapes, tomatoes, etc. Today we will introduce how to measure the color of apple surface by fruit colorimeter CS-580.

Step 1.Prepare the f fruit samples.

fruit colorimeter


Step 2.Turn on the fruit colorimeter and then calibrate it.

fruit colorimeter

fruit colorimeter


Step 3.Becasue the surface color of apple is not even, we will average the 3 test results to get a color value to represents its color value. (From “settings”-“measure setup”-“average”) Press up or down we can change the number.

fruit colorimeter


Step 4. After setting, enter into the measure interface. Press “print” we can view the measurement area by camera. Make sure no light will enter into instrument then press “test” to measure the color of the target. After hearing the sound of “beep”, we can see the test result. a represents red or green (a*+ represents too much red; a*- represents too much green). We are mainly using the “a” value to grade the apple.

fruit colorimeter

Step 5. Press “menu” then we can enter into the color difference measurement interface. Put fruit colorimeter on the sample 1, then press “test” to measure its color, then we can see the test result on screen.

fruit colorimeter

Test Result of Sample 1

fruit colorimeter

Test Result of Sample 2


From the result that we can know the red value of the target and samples then we can separate them into different levels. Comparing visual method, color measured by fruit colorimeter has the advantage of objective, simple operation and high repeatability, etc.


Benchtop Spectrophotometer for Fruit Juice Color Measurement