Primary use: Water Storage
Other uses: Flame Trap
Empty bottles can be found in garbage cans, kitchen counters or after emptying a water bottle. To refill an empty bottle, it needs to be in the main inventory, followed by right-clicking any water source (sinks, wells, rain collectors) and click "Fill Empty Bottle". It will give 1 water bottle which is used the same way as a Water Bottle (Pop). Refilling from unclean water sources, such as ran collectors, will yield tainted water and should be boiled before consumption.
See the Water page for comparisons for water storage.
From items.txt (Project Zomboid directory/media/scripts/)
Weight = 0.1,
CanStoreWater = TRUE,
Type = Normal,
DisplayName = Empty Bottle,
ReplaceOnUseOn = WaterSource-WaterBottleFull,
Icon = WaterBottle_Empty,