Advancements

The Mazu's Furnaces tab has 22 advancements that take you from your first pit to netherite. Some are secret.

Show the full list (spoilers)

Advancement	How to get it
Mazu's Furnaces	Craft your first kiln
Wrong Hole	Try to place a pit kiln outside a proper hole
Fire in the Hole!	Light a pit kiln
Everything Transforms	Make charcoal
Santa Won't Fit	Build a clay kiln
Smooth Operator	Make smooth stone
Another Brick in the Wall	Make stone bricks
Kintsugi	Patch a cracked clay kiln with clay
This Is Fine	Let a clay kiln crack until it crumbles
Firefighter on Duty	Put out an overheating kiln with a water bucket
Let It Bloom	Build a bloomery
Rotten Egg Smell	Get sulfur slag
Yeah, Science!	Make sulfur powder
No Creepers Were Harmed	Craft gunpowder from sulfur
Jack and the Beanstalk	Craft fertilizer
Heavy Metal	Build an Iron Furnace
Armored Core	Put an obsidian lining in a kiln
Hot Surface	Bring a kiln to 1800 °C
Hell's Kitchen	Build a Nether Forge
My Precious	Make a netherite ingot in the Nether Forge
Gotta Bake 'Em All	Have all 5 kilns built at once, within 32 blocks of each other
Am I Missing Something?	Try to craft a vanilla furnace
Relics of an Easier Past	Try to use a vanilla furnace