What poison does in Minecraft
Poison is a harmful status effect that drains your health a little at a time. While it is active, your health bar ticks down in small steps and the hearts turn a sickly yellow-green. The damage keeps coming until the effect runs out or you cure it.
The important thing to know up front: poison cannot kill you on its own. It stops taking health once you are down to half a heart. That makes it dangerous but not instantly deadly, and it should change how you react when the green particles start swirling around you.
You will run into poison from food, from a few specific mobs, and from brewed potions. Knowing which is which tells you whether to reach for milk, run, or just wait it out.
What causes poison
Poison comes from a mix of food, mobs, and potions. The most common sources are:
- Eating a spider eye, which poisons you for about four seconds on top of the small amount of food it restores.
- Eating a pufferfish, which stacks poison with hunger and nausea at the same time.
- Eating a poisonous potato, which has a chance to poison you each time you eat one.
- A cave spider bite on Normal or Hard difficulty. Their venom is what makes cave spider spawners in mineshafts so dangerous.
- A bee sting. Anger a bee and its stinger leaves you poisoned for several seconds before the bee dies.
- Suspicious stew made with a lily of the valley flower.
- Drinking or being hit by a potion of Poison, a splash version, or a poison-tipped arrow.
Raw meat is a common point of confusion. Raw chicken gives you the Hunger effect, not poison, so the green hearts are not coming from your chicken dinner. Poison and Hunger look and behave differently, and mixing them up leads people to the wrong cure.
How poison damage works
Poison deals damage on a timer rather than all at once. At level I it takes half a heart roughly every 1.25 seconds. The effect keeps a steady rhythm the whole time it is active, so a longer duration simply means more ticks of damage.
Higher levels hit harder by hitting faster. Poison II deals the same half-heart hits but on a shorter interval, so a Poison II potion drains your health much quicker than the duration number alone suggests. If you ever get tagged with a strong poison, treat the timer as more urgent than it looks.
No matter the level, the damage floor is the same. Poison will never take your last half heart. Once you drop to 1 HP the ticking stops, and you sit at half a heart until the effect ends. This is why poison works better as a softening tool than a finishing move: something else has to land the killing blow.
That half-heart floor is also the trap. Sitting at 1 HP from poison leaves you wide open. A single mob hit, a short fall, or a second effect like Wither can finish what the poison started. Surviving the poison is not the same as being safe.
How to cure poison
The fastest cure is a bucket of milk. Drinking milk clears every status effect you have, poison included. The catch is that it also removes any buffs you were running, so you lose your strength or regeneration potions along with the poison. Keep a bucket in your hotbar before you head into a cave spider dungeon.
If you do not have milk, you can wait it out somewhere safe. Because poison cannot kill you, standing in a lit, mob-free spot until the timer runs down is a valid plan. Eat food afterward to heal back up, since poison will have chewed through a chunk of your health.
Drinking a healing potion or eating food while poisoned still works, but food will not out-heal a strong poison while it is ticking hard. Wait for the effect to thin out, or drink milk if you need the health back right now.
Brewing a potion of Poison
Poison potions start the way most potions do. Brew an awkward potion first, using a water bottle and nether wart, then add a spider eye to turn it into a potion of Poison that lasts around 45 seconds.
From there the usual brewing modifiers apply:
- Add redstone dust to stretch the duration out longer.
- Add glowstone dust to make Poison II, which deals its damage on a faster interval.
- Add gunpowder to turn it into a splash potion you can throw at a target.
- Add dragon’s breath to a splash potion to create a lingering cloud that poisons anything standing in it.
Poison-tipped arrows come from combining a lingering potion of Poison with arrows in the crafting grid. They are useful for chipping down tough living mobs from range. Watch one quirk: a fermented spider eye turns a potion of Poison into a potion of Harming, so keep your ingredients straight or you will brew the wrong bottle.
What poison does not affect
Plenty of mobs shrug poison off completely. Undead mobs such as zombies, skeletons, and zombified piglins are immune. Spiders and cave spiders are immune as well, which fits, since cave spiders are the ones handing it out. Witches are highly resistant and rarely bothered by it.
That immunity list matters in a fight. Firing poison arrows at a skeleton wastes your brewing ingredients, and throwing a poison splash at a horde of zombies does nothing. Save poison for players in PvP and for living mobs that will actually take the damage.
Poison compared to Wither and Hunger
Poison is easy to confuse with two other effects, and telling them apart quickly can save your life.
The Wither effect is poison’s meaner cousin. It also deals damage over time, but it can drop you all the way to zero and kill you, and it shows black hearts instead of green. If you see dark damage particles rather than green ones, milk becomes urgent rather than optional.
The Hunger effect drains your food meter instead of your health. It never damages you directly, but an empty food bar stops you from regenerating and eventually starts hurting you on higher difficulty. A pufferfish can hit you with poison, hunger, and nausea at once, which is why it is such a punishing thing to eat raw.
Using poison in combat
Poison shines as a setup tool rather than a killer. A splash potion of Poison thrown into a group of players or living mobs puts everyone on a health drain while you fight, and a lingering cloud denies an area for a while. Poison arrows let you start the damage before an enemy even reaches you.
Because the effect cannot land the final hit, plan for a follow-up. Poison softens a target and buys you time, then your sword, bow, or a second potion closes it out. Against anything undead, skip poison entirely and bring a different tool.
Tips and common mistakes
Carry milk before you go looking for trouble. Cave spider spawners in abandoned mineshafts are the classic poison trap, and a bucket of milk turns a scary fight into a manageable one.
Do not panic when poison hits. The worst it can do is drop you to half a heart, so running to safety is usually smarter than chugging a potion in the middle of a fight. The real threat is the second hit that catches you while you are low.
If you farm cave spiders for string and experience, build the grinder so the spiders can never reach you. Their poison combined with their small size and speed is what makes an unplanned cave spider farm so deadly.
Frequently asked questions
Can poison kill you in Minecraft?
No. Poison stops at half a heart and will not take your last bit of health. You can still die if something else hits you while you are low, but the poison alone will not do it.
How do you cure poison fast?
Drink a bucket of milk. It removes poison instantly, along with every other status effect you have active at the time.
Does poison hurt zombies and skeletons?
No. Undead mobs are immune to poison, so poison potions and tipped arrows do nothing to them. The same goes for spiders and cave spiders.
Why am I poisoned after eating something?
You probably ate a spider eye, a pufferfish, a poisonous potato, or suspicious stew made with lily of the valley. Each one can apply poison.
Do bees poison you?
Yes. A bee that stings you leaves poison for several seconds before the bee itself dies. The duration is longer on higher difficulty.
Does poison drain the hunger bar?
No. Poison takes health, not hunger. You may be thinking of the Hunger effect from pufferfish or raw chicken, which is a separate effect that drains food.
Poison rewards a calm response. Keep a bucket of milk on hand, remember that it can never land the final blow, and treat the half heart it leaves you at as the real danger. Handle those three things and the green particles stop being scary.