# Cryogenic & Temperature-Controlled Freight

From vaccine vials to gas-giant ice cores, temperature-sensitive cargo travels in our cryo-rated
holds. Pick the tier that matches your payload's tolerance.

## Temperature Tiers

| Tier     | Range            | Typical Cargo               |
| -------- | ---------------- | --------------------------- |
| Chilled  | 0 °C to 8 °C     | Biologics, fresh provisions |
| Frozen   | −40 °C to −18 °C | Tissue samples, rations     |
| Deep     | −150 °C          | Quantum substrates          |
| Absolute | Near 0 K         | Superconductor cores        |

Cryo holds report their internal temperature to the tracking API every 30 seconds, so a thermal
excursion raises an alert long before your cargo ever notices.