Perfect Pestle ★★★

Taken all the way down to base materials, one Perfect Pestle is 2 crafting steps deep and needs 1 intermediate — Peiste Leather ×1 — which resolves to 4 distinct raw materials totalling 5 units, plus 7 crystals.

That bill outweighs 4,201 of the 13,602 recipes tracked here and 450 of the 1,932 Blacksmith ones, and 4,464 recipes nest deeper.

Only 3 of those crystals go into the final step; the other 4 are burned by the intermediates, so the real crystal cost is 4 Earth Shard, 2 Fire Cluster and 1 Earth Cluster.

The chain crosses two disciplines — Blacksmith to Lv 50 and Leatherworker to Lv 38 — so no single class can finish it unaided.

2 of the 4 raw materials come out of the ground, and one of them is time-gated: Cypress Log (10:00). That window comes round once per Eorzean day, every 70 real-world minutes.

Of the intermediates, Peiste Leather has the widest use: 22 recipes call for it, spanning five of the eight crafting classes.