Food Safety Culture – Color-Coding for the Color-Blind

Color-coded tools at Remco

Food production facilities often rely on color coding their tools and workstations to create zones of control. These zones can designate areas where allergens are used to prevent cross-contact incidents, separate raw – from finished products to avoid cross-contamination issues, or visually represent different shifts to account for concerning potential direct-contamination trends. Color coding is generally easy to understand and provides a universal language for people of all levels of literacy -and – language background.

However, for 1 in 12 men and 1 in 200 women, some colors may be difficult or impossible to discern. Color-blindness comes in many forms, but the most common type is partial color-blindness, where the person can’t distinguish between a couple or a few colors. Of those, the two forms of red/green color-blindness: deuteranopia (reduced sensitivity to red light) and protanopia (reduced sensitivity to green light), occur most frequently. That doesn’t imply color coding as a zoning solution doesn’t work for color-blind employees, but it does mean that colors should be chosen carefully to avoid the most common color-blindness pairings.
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