Patterson, 50, was found guilty of triple murder on Monday after serving her in-laws beef Wellingtons poisoned with death cap mushrooms at her Leongatha home.
Erin Patterson was found guilty of murdering her parents-in-law and her husband's aunt as well as the attempted murder of the aunt's husband Pastor Ian Wilkinson.
Erin Patterson, 50, was judged to have deliberately laced beef wellington with death cap mushrooms.
Erin Patterson made a brief comment to her friend Alison Rose Prior before she was led down to the cells by court staff.
Erin Patterson was so confident she would be found not guilty of murder that she covered her Leongatha home in black plastic tarps, expecting to enjoy privacy once the trial ended.
Mushroom cook Erin Patterson was accused of tampering with prison food while waiting for the trial to begin.
Erin Patterson fed her former in-laws beef Wellingtons laced with poisonous death cap mushrooms.
Erin Patterson has now been found guilty of murdering three relatives and attempting to kill another.
Erin Patterson, 50, found guilty of murdering her estranged husband's parents and aunt with poisonous mushrooms.
Victorian jury convicts 50-year-old Australian woman who cooked poisoned beef wellingtons that killed three in-laws