# Meta — Closed-Loop Cooling Explained: The Plumbing Behind Meta’s AI

- Company: Meta (meta.com)
- Announced: 2026-08-27T21:44:08+00:00
- Category: infrastructure-release
- Coverage: not counted
- Announcement: no
- Group: routine
- Source: https://about.fb.com/news/2026/08/closed-loop-cooling-explained-the-plumbing-behind-metas-ai/
- Record: https://forck.live/items/9912-closed-loop-cooling-explained-the-plumbing-behind-meta-s-ai
- Subject: Meta AI

Meta describes its closed-loop liquid cooling system for AI data centers, which recirculates a water-glycol coolant to cool GPU servers efficiently. The company shares its cooling designs openly via the Open Compute Project, including the IcePack liquid-cooled network rack platform announced in 2025. Meta also uses reinforcement learning to optimize cooling infrastructure.

## Evidence

Verbatim from https://about.fb.com/news/2026/08/closed-loop-cooling-explained-the-plumbing-behind-metas-ai/:

> In 2025, Meta announced IcePack, a liquid-cooled network rack platform that’s being shared openly for free via the Open Compute Project.

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