Romestead Olive Oil & Dolium Guide
Olive oil is one of Romestead's better mid-game food/buff items and the production chain is meaningfully complex — Pottery quest, clay sourcing, Dolium build, fermentation. Here's the full chain from olive tree to finished oil bottle.
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Why bother with olive oil
Olive oil functions as a high-tier food and a crafting ingredient for buff foods. It's also one of the more compact storage items relative to nutritional value — a bottle goes a long way per inventory slot. For long expedition trips into the desert or volcanic biomes, packing oil-based foods beats raw meat by a noticeable margin.
Unlocking Pottery (Sanguis Celeste quest)
You can't just build a Pottery on day one — it's locked behind the Sanguis Celeste quest. The trigger and exact step sequence will appear in your quest log once prerequisites are met (which generally include having a functioning Shrine and a baseline relationship with a few gods).
Complete Sanguis Celeste, and Pottery unlocks as a placeable building.
Building the Pottery
| Resource | Quantity |
|---|---|
| Lumber | 3 |
| Stone | 3 |
| Clay | 4 |
Place it near your other workshops. The Pottery produces empty pots and bottles from clay — both feed into the Dolium chain and other crafting recipes.
Sourcing clay
Clay is a moderately uncommon resource. Where to look:
- River banks and lake edges in the Plains biome — clay deposits often spawn near water.
- Swamp biome has heavier clay availability if you've ventured that far.
- Specific clay nodes look distinctly brown/grey-mottled compared to standard rock veins.
A worker with any pickaxe can extract clay — no special Expertise level required (unlike Tin; see our Bronze guide).
The Dolium
The Dolium is the fermentation vessel that turns olive paste plus empty pots into finished olive oil.
- Build cost: 3 clay barrels (themselves made from clay at the Pottery).
- Place near the Pottery and your olive paste source for short hauls.
- Operates passively once stocked — assign a worker, supply inputs.
The full production chain
- Plant olive trees in your Farmstead or designated grove. They take time to mature.
- Harvest olives from mature trees.
- Press olives into olive paste. Done at the appropriate workshop — the press structure is unlocked alongside or near the Pottery unlock.
- Produce empty pots at the Pottery from clay.
- Combine paste + empty pots in the Dolium. The Dolium ferments and produces filled olive oil bottles.
- Store finished oil in Food Storage; it counts as a food item and an ingredient for buff foods.
The Dolium consumes both olive paste AND empty pots. Players sometimes pile up paste with no pots and the chain stalls silently. Keep the Pottery output queue full.
Automating the chain post-Logistics Tent
Once you've beaten Pyzifax and have the Logistics Tent, the olive oil chain is one of the highest-value chains to automate. Setup:
- Olive grove → press → Dolium all within the Logistics Tent radius.
- Pottery + clay storage nearby, feeding empty pots into the Dolium.
- Output: finished oil routes to Food Storage automatically.
- Workers: dedicated paste-presser, dedicated potter, dedicated Dolium tender. Three citizens minimum for full throughput.
See our automation guide for general chain principles.