# High grade silver

Pyanodons item · internal name `high-grade-silver` · stack size 100 · first craftable in tier 7 (Production science pack, [tier 7](https://factorio.kalzumeus.com/tier/7.md))
HTML page: https://factorio.kalzumeus.com/item/high-grade-silver/

## Produced by (2 recipes)

### High grade silver (`high-grade-silv`)

- 3 s · tier 7
- Ingredients: 4 × [Silver lead concentrate](https://factorio.kalzumeus.com/item/sl-concentrate.md)
- Results: 1 × [High grade silver](https://factorio.kalzumeus.com/item/high-grade-silver.md)
- Made in: Solid separator MK 01, Solid separator MK 02, Solid separator MK 03, Solid separator MK 04
- Unlocked by: [Silver - Stage 3](https://factorio.kalzumeus.com/tech/silver-mk03.md)

### Silver foam (`simik-silver`)

- 80 s · tier ?
- Ingredients: 2 × [Zogna bacteria barrel](https://factorio.kalzumeus.com/item/zogna-bacteria-barrel.md), 2 × [Kmaut tendons](https://factorio.kalzumeus.com/item/tendon.md), 100 × [Lead ore](https://factorio.kalzumeus.com/item/ore-lead.md), 1 × [Biosample](https://factorio.kalzumeus.com/item/bio-sample.md), 30 × [Pressurized air](https://factorio.kalzumeus.com/fluid/pressured-air.md)
- Results: 3 × [Silver foam](https://factorio.kalzumeus.com/item/silver-foam.md), 3 × [High grade silver](https://factorio.kalzumeus.com/item/high-grade-silver.md), 1 × [Alien bacteria barrel](https://factorio.kalzumeus.com/item/bacteria-1-barrel.md), 1 × [Hot air barrel](https://factorio.kalzumeus.com/item/hot-air-barrel.md)
- Made in: Simik den MK 01, Simik den MK 02, Simik den MK 03, Simik den MK 04
- Unlocked by an upgrade choice (script), not research

## Used in (2 recipes)

- Molten silver (`molten-silver-02`, tier 7) → [Molten silver](https://factorio.kalzumeus.com/fluid/molten-silver.md)
- Reduced 99.9% silver (`reduction-silver`, tier 9) → [Reduced 99.9% silver](https://factorio.kalzumeus.com/item/reduced-silver.md)