Chipping Quality Appendix: Chip Characteristics

Fry Colour

Colour score USDA chip colour score Range Description
1 000 0.5 – 1.4 Ultra light
2 00 1.5 – 2.4 Very light
3 0 2.5 – 3.4 Light (golden)
4 1 3.5 – 4.4 Golden
5 2 4.5 – 5.4 Dark golden
6 3 5.5 – 6.4 Dark
7 4 6.5 – 7.4 Very dark

USDA Chip Colour Chart:

Colour Consistency

0 No variation in colour
0.01 – 0.25 Highly uniform
0.26 – 0.50 Uniform
0.51 – 0.75 Variable in colour
>0.76 Unacceptable

Internal Discolouration

:>9.0 None
8.5 – 8.9 Very slight
7.0 – 8.4 Slight
5.0 – 6.9 Severe
<4.9 Unacceptable

Peeling Efficiency

>80% Very good
70-79% Good
50-69% Quite good
< 49% Poor