The odour tests are carried out twice a day in order to ensure that the “test noses” have time in between to rest and recover. A maximum of eight jars are tested per cycle.
There are basically two types of tests. Materials that absorb and retain water easily – such as foams, leather, and upholstery – are heated to 40 degrees Celsius in warm and humid conditions. All other materials are stored dry for two hours at 80 degrees.
Sometimes, Göldenitz even smells something when the state-of-the-art electronic measuring devices display nothing. And sometimes his nose check also reveals surprising results. “I once had a component that smelled of liver sausage. Or to be more precise, of delicious, spicy Palatinate liver sausage”, says the chemist. Needless to say, his verdict was still a straight fail.