Food safe polyurethane casters use FDA compliant materials, non marking treads, and stainless steel rigs to handle washdowns, chemicals, and strict sanitation demands in food processing and pharmaceutical environments. These wheels avoid carbon black fillers and usually carry NSF listings that confirm they are suitable for food contact zones and clean spaces. Temperature ratings often reach from well below freezing to around 180 degrees, and sealed bearings prevent contamination while keeping the caster smooth rolling under load.

Almost all food safe polyurethane wheels are blue because food is almost never that color. If a small piece of tread ever breaks off during production, the bright blue speck is instantly visible in the product line. Other colors like black or red can blend in and hide contamination, which is why they are avoided in these environments. When paired with stainless steel frames, blue food grade polyurethane gives you a caster that meets compliance, protects product integrity, and holds up to nonstop cleaning cycles.