What are zero-clearance hinges on refrigerators?

Zero-clearance hinges are special refrigerator door hinges designed to allow the doors to open fully in tight spaces with little to no side clearance. They enable the fridge doors to swing open without hitting adjacent walls or cabinets, perfect for installations where the opening matches the fridge width. Confirm the manufacturer's specifications before relying on zero-clearance hinges, as some models vary in fit despite marketing claims.