Coolant leaked early Wednesday morning at a company in Hünfeld (Fulda district).
The reason for this was a technical defect in a production container, said the police.
The police stopped the coolant from escaping.
Nobody got hurt.
Two firefighters were taken to a hospital as a precaution because they came into contact with the coolant.
Hünfeld - The work at Hochwald Foods initially continued, Ströherstrasse was temporarily closed.
dpa