For a practical Factorio quality guide, start with a simple build and upgrades that clearly improve your factory. Spreading quality modules everywhere wastes circuits, fills chests and can stop science.
Key points
- Quality is a Factorio: Space Age feature with four higher tiers above normal.
- Quality modules increase the chance of higher-quality outputs and slow the machine.
- The recycler returns about 25% of ingredients on average, loses fluids and cannot use productivity modules.
- Fulgora is central for scrap recycling, electromagnetic plants and quality module 3 production.
The safest plan uses a dedicated cell, clean filters and one clear target. After Fulgora, the recycler lets failed rolls become another attempt. Every loop is still expensive. For more French coverage, browse articles, news and latest posts.
Factorio quality guide: key takeaways
- Start with modules, armor, personal equipment and key machines.
- Do not modify science chains until sorting is reliable.
- The recycler returns about 25% of ingredients on average.
- Fluids are lost during recycling.
- On Fulgora, stabilize scrap sorting before chasing epic or legendary items.
Factorio quality guide: best first upgrade targets
Quality improves items in different ways. Machines craft faster. Modules get stronger. Personal equipment becomes more efficient. Some turrets gain range.
Do not start with belts, rails, pipes, walls or lamps. Their early gain is usually durability. That is weak compared with the volume you must produce.
Pick expensive, compact items or pieces you need in small numbers. Rare armor helps right away. Better exoskeletons and stronger personal roboports are also strong early wins. On space platforms, one better machine can save precious room.
| Priority | Targets | Why it works |
|---|---|---|
| Very high | Quality modules, productivity modules, armor, personal equipment | Lasting bonuses and low volume |
| High | Assemblers, electromagnetic plants, furnaces, drills, turrets | Direct bottleneck gains |
| Medium | Solar panels, accumulators, platform parts | Useful when space is limited |
| Low | Belts, pipes, chests, walls, rails | Poor early return |
Best starter build for quality modules
The common mistake is changing a vital line without filtered outputs. Different quality levels do not stack together. One full chest can stop an inserter and break a whole chain.
Build a small separate cell. Feed it normal ingredients, craft one target item and sort every result. Normal items can return to regular production. Uncommon, rare and better outputs need separate limited chests.
- Choose one target, such as quality module 1, armor or an assembler.
- Limit input with a chest or a dedicated belt.
- Filter normal, uncommon, rare and better outputs at once.
- Set strict chest limits.
- Stop the cell when the target chest has enough items.
- Reuse lower tiers instead of polluting logistics.
Quality modules also slow machines. If the line feeds science, add machines or keep the test isolated. Mix speed and quality only when the result is intentional.
Best recycler loop for Factorio quality
The Factorio Space Age recycler turns most items back into part of their ingredients. The official recycler wiki lists an average return of about 25%. It does not recover fluids and cannot benefit from productivity modules.
Wait for stable production before recycling failed rolls. The recycler is best once you have a target and low-quality output is piling up. Start with modules, advanced circuits, equipment parts or rare machines.
A basic loop is simple. The assembler crafts with quality modules. Filters keep the target quality. Rejects go into the recycler. Recovered ingredients return to input. Always add overflow storage or a shutoff.
Build a reliable quality cell step by step
Your first cell should not chase legendary items. It should produce clean uncommon or rare items. It should also make something you can use soon.
- Limited input: a few stacks are enough for a test.
- Filtered outputs: one destination per quality tier.
- Protected wins: rare or better items never return to recycling by mistake.
- Controlled return: recycled ingredients re-enter only when input is low.
- Visible stop: one signal shows when output chests are full.
Place the cell near the mall. Keep it compact and easy to inspect. Once stable, copy the pattern for another item.
Fulgora route for better quality modules
Fulgora is where quality becomes a serious system. Scrap creates mixed outputs. Recyclers become core machines. Electromagnetic plants help electronics and modules.
The official Friday Facts #399 confirms Fulgora’s role, scrap recycling, recyclers and quality module 3. Do not try to make everything rare on arrival. Stabilize lightning power, scrap sorting and useful component output first.
Then dedicate one branch to quality module 3. Use your best quality modules to craft better quality modules. That loop upgrades every future attempt.
Mistakes to avoid in this Factorio quality guide
Legendary items cost a lot. The official Friday Facts #375 warns that pushing too high too early can consume much of a factory’s production. In the mid-game, rare is often enough.
Be careful with recipes that include fluids. Liquids are lost. Also avoid recycler loops on a base already short on copper, circuits or power.
Before each new cell, ask three questions. Will the improved item be used now? Can the line stop without blocking science? Do lower tiers have a clean output? If not, strengthen the base first.
Frequently Asked Questions
When should I start using quality in Factorio Space Age?Start after your base is stable and you can spare modules. Test one dedicated cell first.
Quality modules are the best first target. After that, improve armor, personal equipment and productivity modules.
Filter every quality tier into its own chest. Add a strict limit to each chest.
No. It returns about 25% of ingredients on average and loses fluids.
No. Stabilize scrap and power first, then aim for uncommon or rare before scaling higher.
No. Quality modules cannot go into beacons, but they work in many production machines.
Belts, pipes, rails, walls, lamps and basic chests are usually poor early targets.
Use the official Space Age page, the Quality wiki and official Friday Facts.
Verified sources
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