The organisers of a Brisbane-based cake swap event are facing an investigation following multiple health and safety complaints and backlash from attendees.

The event, Let Them Eat Cake, was held in mid-January at a warehouse in the inner-city suburb of Hamilton. Guests were invited to bring homemade cakes to swap for slices of other participants’ cakes.

Organisers Doughy Events were expecting around 1000 cakes and participants to take part in the cake swap, which was moved to the warehouse due to concerns about the heat.

However, attendees have lashed out, reporting the warehouse wasn’t air-conditioned, and the long entry queues meant the quality of cakes also suffered.

Additional complaints regarding  food safety were also levelled at the organisers. Attendees were required to print out a list of ingredients to display next to their cakes, however those on the day said this was not policed.

One attendee told The Courier Mail, “it was a hot day and we were made to wait outside in the heat for hours.”

“Once we got in, I didn’t want to eat any of the cakes. People were touching them with their hands and they had been sitting in the heat for ages.”

In a statement made following the events Doughy Events promised there would be improvements made in the future.

“We will be making clear adjustments moving forward, including changes to capacity, scheduling, venue selection and event systems to ensure a smoother and more comfortable experience for everyone,” it said.

“We have received death threats and had our home address shared online.

“This is completely unacceptable. Threats, harassment and the distribution of private information have no place here or anywhere.”

Brisbane City Council has also launched an investigation into the event.

A council spokesperson said, “all food businesses, including temporary stalls or market vendors, must meet Australia’s food safety standards.”