Thirst

Thirst is a Survival Aspect of Minecraft that governs several aspects of gameplay. Drinking liquid fills up the thirst bar, which is constantly drained by the player's actions, however, this liquid must be filtered to make it safe to consume. The thirst bar is located on the HUD opposite to the player's health bar on the bottom of the screen above the hunger bar, represented by ten droplets, and each is equal to 2 half-units of thirst.

Behavior
The thirst bar is similar to the hunger bar in terms of the effects, including limiting health regeneration and sprinting. However, these effects are much more dangerous, and, as such, it is vital for players to always establish water first.
 * When the thirst bar reaches 18, players stop naturally regenerating health.
 * When the thirst bar reaches 16, players can still sprint, but not for long periods of time.
 * If the thirst bar is at 6 points or below, then the player will not be able to sprint unless difficulty is switched to Peaceful.
 * When the thirst bar is at 0, the player's health will deplete at a rate of 2 every 4 seconds (this makes sleeping impossible). On Easy difficulty, the player's health stops dropping at 10, on Normal it stops at 1, and on Hard it keeps draining until either the player drinks something or dies.

Unfiltered Liquid
Drinking liquid that has not been filtered will result in the player being poisoned and a message popping up reading "This [liquid name] has not been filtered!" Unfiltered Liquid can be deadly if consumed over and over. As such, a Water Filter is a vital item to establish early on in the game.