---
title: Temperature: how the terrarium simulator works
description: The jar follows the room, a little warmer under a lamp. A thermostat holds the room steady; a seasonal room swings over the year. Outside its comfortable...
url: https://glassjar.garden/guide/how-it-works/temperature/
---

How it works

# Temperature

The jar follows the room, a little warmer under a lamp.

- A thermostat holds the room steady; a seasonal room swings over the year.
- Outside its comfortable band a species grows slowly.
- Past its lethal edge, every such day risks killing it.
- Warmth speeds rot and decay; each 10 °C doubles them.

## Stats

- Decay speed-up: 2x per 10 °C

- Heat and cold: rise over 2 °C past the edge

[See it in a jar](https://glassjar.garden/?guide=how-it-works/temperature)

[← Light](https://glassjar.garden/guide/how-it-works/light/) · [Plants →](https://glassjar.garden/guide/how-it-works/plants/)