⚠️ Eco v0.14 is coming — the next major update reworks upgrade modules, so some of these numbers will change. They reflect the current version. What’s changing →

Simpler tiers: the 1–4 tiered upgrades become a single Basic / Advanced / Modern upgrade each.
Permanent upgrades: a module placed in a workstation is permanent — no more swapping lower tiers out as you progress.
Power transitions: a module can change a station’s power type/draw (e.g. a Modern upgrade moves a sawmill from mechanical to electrical power).
Talent-integrated: modules now use the same bonus/talent system — any talent benefit (power, labor cost, recipe unlocks) can come from a module.
Cheaper to upgrade: with the multi-tier parts gone, fully upgrading a workstation costs significantly less.

We’ll update this calculator shortly after the update releases.

Home › Items › Fiber Filler

Fiber Filler

Tool

A filler ingredient used in a variety of fertilizers.

Weight500 gMax stack50Nitrogen+0.3Phosphorus+0.4Potassium+0.2SkillFertilizers Lv 2StationFarmers Table

Notes

Fiber Filler is a crafting ingredient used as a filler in a wide range of fertilizers, including Hide Ash, Pelt, Phosphate, Berry Extract, Blood Meal, Camas Ash, and Compost Fertilizers. As a common base component, keeping a stock of Fiber Filler can streamline fertilizer production for farming operations.

Notes are AI-generated and may be imprecise.

⚙ Craft calculator — adjust for your modules, skill & talents

▶ Open the full recipe page

Upgrade modules

Farming Upgrade (−20% cost) Fertilizers Upgrade (−25% cost)

Fertilizers level 0Skill level changes labor only.

Quantity to craftScales ingredients, labor, time, output & total raw by the number of crafts.

Ingredients

Ingredient	Qty	Type
Plant Fibers	15	item
Dirt	1	item

Crafting

Labor	15 calories
Craft time	0.3 min
Throughput	≈ 200 Fiber Filler / hour (base)

Total raw to craft this

Steps4Total labor2255 calTotal time62.6 min

240× Cotton Boll
5× Dirt
5× Wood (any)

Approximate — category ingredients and any production cycles are counted as raw.

Categories

Obtained from

Fiber Filler

Used in

See also

Composite Filler