30 recipes · 21 tiers · 21 gathered materials
Everything the hideout needs to make Aluminum, read left to right: the goal is on the left, the things you gather are on the far right, and every dashed box between them is one bench recipe. 12 recipes left out: each needs something already further along the chain, so it is not a way of making this.
Gathered materials 21
Saltweed Pulp ×50
Water Carrier ×10
Boar Meat ×5
Strong Boar's Hoof ×5
Piggy Meat ×5
Purple Minerals ×5
Mutt Meat ×5
Fabric ×5
Half-rotten Fish ×4
Scarlet Minerals ×3
Multitool ×2
Burning Crappite ×1
Remains of Murmur Devices ×1
Strange Artifact ×1
Purified Substance 07270 ×1
Dark Limbo ×1
Oil ×1
Saucepan ×1
Frying Pan ×1
Asbestos ×1
Huge Artifact Fragment ×1
Craft graph
Purple Minerals gather ×5 Saltweed Pulp gather ×50 Asbestos gather Water Carrier gather ×10 Purified Substance 07270 gather Fabric gather ×5 Frying Pan gather Huge Artifact Fragment gather Strange Artifact gather Oil gather Dark Limbo gather Saucepan gather Burning Crappite gather 
Reagents craft ×5 Mutt Meat gather ×5 Piggy Meat gather ×5 Multitool gather ×2 Boar Meat gather ×5 Remains of Murmur Devices gather Half-rotten Fish gather ×4
Pack of Bolts craft Scarlet Minerals gather ×3 Strong Boar's Hoof gather ×5 2
2
2
2
2
1
2
2
2
2
1
1
Electric Mixture craft ×2
Petroleum Coke craft ×2
Thermal Mixture craft ×10
Iron craft ×5
Potash craft ×2
Polymers craft 
Ammonia craft ×2 2
3
3
3
1
2
2
2
Carbon Dioxide craft ×5
Plastic Bottle craft ×5
Biogas craft ×2 1
2
2
Bottle of Pure Water craft ×3 3
Hydrogen craft ×3 3
Methane craft ×2 2
Gas Cylinder craft 3
Protective Gear craft 4
Caustic Sodium craft 3
Aluminum Powder craft ×7 3
Aluminum goal