Victoria Police say there is no evidence of a cultural problem among officers, despite details emerging of a second batch of racist stubby holders.
Police on Tuesday confirmed in 2010 a police social club at Bairnsdale, in eastern Victoria, had made stubby holders with slogans apparently mocking the local Koori community.
The officers involved were reprimanded and underwent cross-cultural training.
Last week it emerged two sergeants at Sunshine, in Melbourne's west, had produced stubby holders with derogatory statements about African migrants and refugees.
Assistant Commissioner Andrew Crisp said the two incidents did not indicate a cultural problem across the entire police force.
"We're talking about an incident that happened back in 2010 and another one that was 18 months ago," he told reporters in Melbourne on Tuesday.
"I can drawn no link between the two... they are completely isolated and separate incidents."
However, Mr Crisp said police would not tolerate racism among members.
"We can't defend the indefensible," he said.
"This type of paraphernalia should not be found at police locations."