Senator Hanson posted a video to Facebook on Tuesday, urging Australians not to buy Easter eggs that were halal-certified. 

"We see these products out there that are actually halal-certified, Cadbury’s chocolate for instance, halal-certified,” she said in the video. 

“Go and buy some non-halal Easter eggs and chocolate and have a happy Easter everyone and a very safe one.” 

Senator Hanson went on to suggest customers buy products that were not halal-certified, including Lindt and Darrell Lea. 

But Australian Manufacturing Workers' Union state secretary John Short said the claim was “outrageous”. 

“These are really good Tasmanians workers, the ones at Claremont, and Pauline Hanson should be coming out in support of those people,” Mr Short said.

“What she’s doing does nothing to help companies like Cadbury get into those export markets.

“Get out this Easter, like I will, and enjoy Cadbury products because it’s a very high quality product made by very, very skilled workers.” 

Deputy Premier Jeremy Rockliff said the government did not support the boycott of the Tasmania product. 

“We support the jobs at Cadbury, absolutely, we support all the jobs in our dairy industry,” Mr Rockliff said.

Greens spokeswoman Andrea Dawkins called the video a “disgraceful social media attack on Cadbury's Hobart workers”. 

“There are 1,100 hardworking Tasmanians employed at Cadbury's Claremont factory,” Ms Dawkins said.  

“Senator Hanson's call for a boycott on Cadbury's, because they halal certify their chocolate, is a threat to those jobs.”