Erin Patterson, the Australian serving life for the mushroom murders, has officially lodged an appeal against her convictions.

The 51-year-old was found guilty of murdering three relatives and trying to kill another with a toxic mushroom meal at her home in the state of Victoria in 2023.

Under Australian law, appeals are not an automatic right, and Patterson's legal team had to convince the Court of Appeal that there might have been legal errors in her trial.

Patterson's appeal was officially lodged on Monday, after the court gave her lawyers the green light to challenge the convictions. The grounds of the appeal have not yet been disclosed.

Throughout the 11-week trial, Patterson maintained her innocence, arguing that it had all been a terrible accident, and she had not intentionally included toxic mushrooms in the beef Wellington meal she cooked and served for lunch.