MasterChef Australia

Season 18 Episode 20: Mystery Box Challenge: Dim Sim Lim

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Watch MasterChef Australia season 18 episode 20 tv series online free

Release: May 24, 2026

Kicking off nostalgia-themed week in the MasterChef kitchen, social media sensation chef Dim Sim Lim sets a 60-minute mystery box challenge requiring a steamed element.

MasterChef Australia

Auditions, Day 1: Your Dream on a Plate

Auditions, Day 2: Food Dream

Auditions, Day 3: Showstopper Dish

Mystery Box Challenge: Jimmy & Jane Barnes

Elimination Challenge: Favourite Home Dish

Invention Test: Cereal

Pressure Test: Maggie Beer's Sour Cream Pastry

Immunity Challenge: Ultimate Breakfast

Elimination Challenge: Quick Carb Midweek Dinner

Team Challenge: Family Feast

Elimination Challenge: Family Food Traditions

Mystery Box Challenge: Catherine Zhang

Elimination Challenge: Viral Ingredients

Service Challenge: Viral-worthy Dish

Immunity Pin Challenge: Banging Sandwiches

Mystery Box Challenge: Rick Stein

Elimination Challenge: Cuisines from Around the World

Invention Test: Fusion

Pressure Test: Rosheen Kaul's Chou Farci

Mystery Box Challenge: Dim Sim Lim

Elimination Challenge: Heritage

Team Challenge: Team Relay

Immunity Pin Challenge: French Techniques

Mystery Box Challenge: Matt Sinclair vs. Daniel Dobra

Elimination Challenge: Classic Flavour Pairings

Pair Challenge: Chocolate and Peanut Desserts

Elimination Challenge: Time vs. Ingredients

Mystery Box Challenge: Curtis Stone

Elimination Challenge: Pork