Water quality

Fresh water has a grade, from Dirty to Pure. Sea water is Salty, has no grade, and never quenches thirst. Every container shows which one it holds in its tooltip.

The four grades

From worst to best: Dirty, Murky, Clean, Pure. Water gets its grade where it is collected and keeps it.

Where the water comes from	Usual grade
Swamp or mangrove swamp	Dirty
Jungle, savanna or badlands	Dirty
Most other biomes	Murky
River	Murky
Mountain	Clean
Cold peaks	Pure

• Hot biomes make water worse, cold biomes make it better.
• Water above y 100 or below y 32 is a little cleaner. So is flowing water.
• Mud, mangrove roots, farmland or a composter within two blocks make water worse.

Modpacks can add biomes to the thirstwastaken2:stagnant_water tag. Water with no grade of its own uses defaultPurity.

Checking water with Jade

With Jade installed, looking at water, a waterlogged block, a water cauldron or a hanging pot shows its grade, or Salty. It can be turned off in Jade's plugin settings.

Salt water

Oceans and beaches give salt water. It has its own icon and tooltip line. On Minecraft 1.21 and 1.21.1 only the bowl has its own icon.

• Drinking it costs thirst, causes eight seconds of Nausea and 30 seconds of Parched II.
• It cannot be boiled clean.
• One salty drink makes a whole waterskin, cauldron or hanging pot salty.

Parched

Parched makes thirst drain faster, the way Hunger does for food, and turns the thirst bar the colour of dry sand.

Mixing and cauldrons

• A waterskin takes the average grade of its drinks, rounded down.
• A cauldron keeps the worse grade of what it holds and what is poured in.

A cauldron also fills on its own:

How it filled	Grade
Rain	Clean
A pointed dripstone dripping into it	Pure

Neither improves water already in the cauldron.

Drinking bad water

Fresh water always quenches thirst. The grade sets the risk, and harder difficulties make it worse. Pure water is always safe.

Bad water fills the thirst bar but does not last. Dirty water gives no quenched and Murky water half, so thirst starts dropping again soon after, the way rotten flesh gives almost no saturation.

Dirty and Murky water taste bad: every drink gives seven seconds of Nausea, even on Peaceful. Then each drink can make the player ill, with at most one illness at a time.

Chance per drink	Dirty	Murky	Clean
Peaceful	none	none	none
Easy	15% Poisoning, 50% Upset Stomach I	5% Poisoning, 30% Upset Stomach I	5% Upset Stomach I
Normal	25% Poisoning, 50% Upset Stomach II	10% Poisoning, 40% Upset Stomach I	2% Poisoning, 10% Upset Stomach I
Hard	33% Poisoning, 45% Upset Stomach II	20% Poisoning, 46% Upset Stomach II	5% Poisoning, 15% Upset Stomach I

Drinking again while ill rolls again. The same illness lasts longer, up to twice its time, and Upset Stomach I becomes II. A worse one adds its effects. A milder one does nothing.

The chances can be changed per difficulty, or the old Nausea and Poison brought back, with sicknessPreset.

Upset Stomach

The common one. It never hurts on its own.

• Thirst drains faster, twice as fast at level II.
• The screen warps now and then, about once a minute at level I and twice at level II.
• Food fills less saturation, and drinks less quenched: three quarters at level I, half at level II.
• The thirst bar turns green while it lasts.

It lasts 45 seconds on Easy, 60 on Normal and 90 on Hard.

Poisoning

A bad batch. It comes with Upset Stomach, and milk cures it.

	Easy	Normal	Hard
Poison	10 seconds	20 seconds	30 seconds

Poison stops at half a heart, so Poisoning never kills.

Cleaning fresh water

Put a water bottle, terracotta water bowl or water bucket in a furnace, a smoker or on a campfire.

In	Out
Dirty	Clean
Murky	Pure
Clean	Pure

A furnace takes ten seconds, a smoker five, a campfire thirty. An Iron Flask works in a furnace too, however full it is. Other ways to clean water:

• A Copper Canteen or Iron Flask boils its water Pure over a campfire.
• A Hanging Pot boils a whole bucket Pure.
• The Farmer's Delight Cooking Pot makes bottles and bowls Pure in one pass.
• The Create Sand Filter cleans water pumped through it.

Boiling in a canteen or flask

Hold use on a lit campfire or soul campfire with a Copper Canteen or Iron Flask that holds water. The progress shows above the hotbar, and when it is done all the water inside is Pure.

	Per drink	Full
Copper Canteen	3 seconds	12 seconds
Iron Flask	4 seconds	24 seconds

• Letting go keeps the progress. Adding water starts it over.
• Salt water never boils clean.
• Only the Iron Flask goes in a furnace. It raises the water two grades, like a bottle.

Copper Hanging Pot

Placed on a lit campfire or soul campfire, it boils water into Pure water. It can also stand on any solid block, but only boils over a fire.

On Minecraft 1.21 and 1.21.1 the recipe uses a chain instead of an iron chain.

• Holds three servings, like a cauldron. A bucket fills or empties it. A bottle or bowl adds or takes one.
• A waterskin fills up from it in one go, as far as the pot has water. Sneak to pour all of it in.
• Each serving takes 4 seconds.
• Adding water only adds that water's time. Putting the fire out pauses the boil.
• The water changes colour with its grade.
• It mixes like a cauldron, and salt water never boils clean.
• Rain fills it slowly.
• Water cannot be poured into it in the Nether.
• Breaking it drops the pot. The water is lost.

Iron Hanging Pot

Works like the Copper Hanging Pot but boils slower: 6 seconds a serving.