🔒 Unlocked by: Mass Production II (Research), Mega electric furnace (Interplanetary shop (Space station) · Merchant III), Mega electric furnace (Interplanetary shop · Merchant III) (+1).
Glass
Produced by
| Inputs | Outputs | Base time | Building |
|---|---|---|---|
6×  Sand | 1× Glass | 48 s |  Electric furnace |
| 12× Sand | 3× Glass | 1 min 36 s |  Advanced electric furnace |
1×  📦 Sand | 25× Glass | 2 min 13 s |  Mega electric furnace |
Used in
| Inputs | Outputs | Base time | Building |
|---|---|---|---|
| 1× Glass | 1×  Glass Bottle | 48 s | Electric furnace |
| 2× Glass | 3× Glass Bottle | 1 min 36 s | Advanced electric furnace |
2× Glass 1×  Iron Ingot | 1×  Lens | 1 min 12 s | Electric furnace |
| 4× Glass 2× Iron Ingot | 3× Lens | 2 min 24 s | Advanced electric furnace |
1× Glass 10×  Water ball | 1×  Oxygen Bottle | 2 s |  Workbench |
100× Glass 1×  Empty Package | 1×  📦 Glass | 30 s |  Packager |