How do I craft Kelp Sac in No Man's Sky?

To craft Kelp Sac, you need Salt x1, Nitrogen x1. Use the Refiner to combine them.

What ingredients do I need for Kelp Sac?

You need: Salt x1, Nitrogen x1.

Kelp Sac

Kelp Sac is a raw material in No Man's Sky. A rubbery, luminescent sac harvested from underwater Candle Kelp plants. Agricultural science has not yet tamed the Candle Kelp. As such, these sacs cannot be farmed. To craft it, combine Salt x1, Nitrogen x1 in a Refiner.

Last updated: 2026-02-12

Quantity

Inputs	Output
Kelp Sac 1 Oxygen 1	Chlorine 2
Kelp Sac 1 Pugneum 1	Chlorine 2
Kelp Sac 1 Salt 1	Chlorine 2
Kelp Sac 1 Chlorine 1	Chlorine 2

Inputs	Output
Kelp Sac 1	Oxygen 1
Kelp Sac 1 Carbon 1	Oxygen 2
Kelp Sac 1 Condensed Carbon 1	Oxygen 2
Fungal Mould 1 Kelp Sac 1 Condensed Carbon 1	Oxygen 10
Frost Crystal 1 Kelp Sac 1 Condensed Carbon 1	Oxygen 10
Cactus Flesh 1 Kelp Sac 1 Condensed Carbon 1	Oxygen 10
Solanium 1 Kelp Sac 1 Condensed Carbon 1	Oxygen 10
Gamma Root 1 Kelp Sac 1 Condensed Carbon 1	Oxygen 10
Star Bulb 1 Kelp Sac 1 Condensed Carbon 1	Oxygen 10

Inputs	Output
Kelp Sac 1 Sodium 1	Sodium Nitrate 2
Kelp Sac 1 Sodium Nitrate 1	Sodium Nitrate 2

Kelp Sac

How to refine Kelp Sac

What can you refine from Kelp Sac? (3)

What can you cook from Kelp Sac? (2)

Kelp Sac

How to refine Kelp Sac

Kelp Sac 1

Kelp Sac 1

What can you refine from Kelp Sac? (3)

Chlorine (4 ways)

Oxygen (9 ways)

Sodium Nitrate (2 ways)

What can you cook from Kelp Sac? (2)

Kelp Rice

Salty Cruncher