Understanding Thermoblade
An upgraded knife that can cook suitable small fish when used to harvest them.
This is an original reference for the first Subnautica. Your current depth rating, oxygen, available tools and navigation route determine when an objective is practical. Follow actual in-game PDA and Fabricator information for any values that vary by version.
How to use this information
Use when equipped and when freshness matters on exploration trips.
What to avoid
Do not assume it handles every species or solves water requirements.