The Freezer is an electric Slimefun machine.

The Freezer is used to convert hot/cold materials. One of its products, the Reactor Coolant Cell, is essential for the Nuclear Reactor, a high-tier energy Generator.
Place the correct items of a recipe in the input slots. After processing, the final items will be placed in the output slots.
| Energy buffer | 256 J | |
| Tier | Tier 1 | Tier 2 |
| Processing speed | 1x | 2x |
| Energy consumption | 18 J/s | 30 J/s |
This machine's processing time varies, depending on the recipe.
| Input | Output | Tier 1 processing time |
| Water Bucket |
Ice Bucket |
2s |
| Lava Bucket |
Obsidian Bucket |
8s |
| Ice | Packed Ice | 4s |
| Packed Ice | Blue Ice | 6s |
| Blue Ice | Reactor Coolant Cell | 8s |
| 2 Snow Block | Ice | 6s |
| 2 Magma Block | Slime Block | 6s |
| Magma Cream | Slimeball | 6s |