[2] On 27 April 2020, it was announced that a third season of Junior MasterChef Australia had been commissioned, nine years after the second series aired.

[7] Isabella Bliss won the contest to become Australia's first Junior MasterChef.

[9] 11-year-old Greta Yaxley from Western Australia won the Junior MasterChef title for 2011.

Applications for casting were opened on 25 April 2020 for children across Australia aged from 9–14.

[4][11] Andy Allen, Melissa Leong and Jock Zonfrillo returned from the main series to undertake the role of judges.