Aerogel is one of the most valuable resources in the Subnautica universe. The material is required to craft various essential advanced machineries like Prawnsuit, Water-Filtration Machine, Thermal Plant, and much more. To make Aerogel, you will need to place some Gel Sack and Rubies inside a Fabricator.

Finding Some Gel Sack

Gel Sack is a common edible species of flora found in the various deeps of Subnautica. It looks like a black rock with purple patches all over it. Here is a list of all the locations where it can be collected.

  • Sea Treader’s Tunnel CavesNorth-Western Mushroom ForestMountains CavesTree CoveGhost ForestBlood Kelp ZoneBone Fields CavesGhost CanyonLost RiverGrand ReefBone FieldsDunesDeep Grand ReefDeep Sparse ReefCorridor

Where to Look for Rubies?

As mentioned before, apart from the Gel Slack, the other ingredient required to make Aerogel is the Ruby. They can easily be identified with their bright red shiny appearance. Also, they emit a slight glow from their bodies during the night.

  • Bulb Zone CavesGhost ForestTree CoveInactive Lava ZonesBlood Kelp ZoneBone FieldsCrash Zone MesasCorridorGrand ReefUnderwater Islands CavesSea Treader’s Tunnel CavesMountains CavesGrand Reef CavesMountains CorridorDeep Sparse ReefBone Fields CavesDunesBulb ZoneGhost CanyonJunction

Crafting Aerogel in Subnautica

After collecting both the materials, open your Fabricator and navigate to  Resources>Advanced Materials> Aerogel. After crafting, Aerogel will be added to your inventory.

Remember, While Aerogel can be used to make several items, We recommend you make the Water Filtration System and Prawn Suit System as early as possible using it.

For more Subnautica content, check out Where is the Frozen Leviathan in Subnautica: Below Zero on Pro Game Guides.