A vegan has slammed Bunnings for holding a sausage sizzle to raise money for bushfire victims, in an online post that has since gone viral.

The hardware giant announced proceeds from a sausage sizzle on November 22 will go towards those who have been affected by the fires and drought in New South Wales and Queensland.

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Four people have died in the NSW fires and hundreds of homes have been lost across both states.

But the fundraiser, in which a donation tin will also give customers an opportunity to donate more funds, has been slammed online.

"Why oh why are people selling sausages to raise money when it's known that meat is a contributing factor to climate change? Which is a contributing factor to these fires!" one person wrote the Facebook group Vegan Gals Australia.

"It honestly baffles my mind and makes me so sad.

"It's a heartbreaking vicious cycle."

The comments were posted to a Facebook group. Credit: Facebook

The post gained a lot of attention but was later taken down.

The West Australian newspaper's political editor Lanai Scarr told Sunrise she thinks the complaint is "ridiculous".

"Now is not the time to politicise the bushfire issue," Scarr said.

"If people want to be vegan then fine, good on them, but why should we be berating people who are wanting to raise money to help those who have lost everything in these bushfires."

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Former NSW liberal leader Kerry Chikarovski added that the vegan comments were not appreciating the communities that Bunnings supports.

"They’re community-based sausage sizzles, they happen every week," she said.

"All they're doing is extending that, and saying this time we're going to give all the money to victims, which is a great thing.

"Every corporate in the country should be thinking about how they can contribute to helping people rebuild their lives."

A Bunnings spokeswoman told 7NEWS.com.au the funds will go to GIVIT - which assists communities in times of disaster and recovery.

"GIVIT’s national presence aids local communities all over Australia by working closely with charities, community groups and councils to ensure that support is directed where it’s needed most," the spokeswoman said.

"Customers who don’t wish to purchase a sausage can still donate in-store on the day."