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Tunnel Proofer

Tunnel Proofer. An automatic final proofer (q.v.) in the form of a tunnel that ranges in length from 90 to 300 feet, with the actual length depending on the capacity of the oven (q.v.) it serves. Its pan-carrying conveyor (q.v.) is generally of the grid type and is often coupled directly to the loading mechanism of the oven (q.v.).