# Improved caged vrauk: recombinant erythropoietin

Pyanodons item · internal name `blood-caged-vrauks` · 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/blood-caged-vrauks/

## Produced by (2 recipes)

### Improved caged vrauk: recombinant erythropoietin (`vrauks-improved-10`)

- 30 s · tier 7 · productivity modules allowed
- Ingredients: 1 × [Caged vrauk](https://factorio.kalzumeus.com/item/caged-vrauks.md), 1 × [Recombinant erythropoietin](https://factorio.kalzumeus.com/item/recombinant-ery.md), 1 × [Growth factor](https://factorio.kalzumeus.com/item/gh.md)
- Results: 1 × [Improved caged vrauk: recombinant erythropoietin](https://factorio.kalzumeus.com/item/blood-caged-vrauks.md)
- Made in: Vrauk paddock MK 01, Vrauk paddock MK 02, Vrauk paddock MK 03, Vrauk paddock MK 04
- Unlocked by: [Erythropoietin stimulating agents](https://factorio.kalzumeus.com/tech/recombinant-ery.md)

### Improved caged vrauk: recombinant erythropoietin (`vrauks-improved-9`)

- 90 s · tier 7 · productivity modules allowed
- Ingredients: 1 × [Caged vrauk](https://factorio.kalzumeus.com/item/caged-vrauks.md), 1 × [Recombinant erythropoietin](https://factorio.kalzumeus.com/item/recombinant-ery.md)
- Results: 1 × [Improved caged vrauk: recombinant erythropoietin](https://factorio.kalzumeus.com/item/blood-caged-vrauks.md)
- Made in: Vrauk paddock MK 01, Vrauk paddock MK 02, Vrauk paddock MK 03, Vrauk paddock MK 04
- Unlocked by: [Erythropoietin stimulating agents](https://factorio.kalzumeus.com/tech/recombinant-ery.md)

## Used in (1 recipes)

- Extract formic acid from improved vrauk (`ex-blo-vrauks`, tier 7) → [Cage](https://factorio.kalzumeus.com/item/cage.md)