Collect the stuff you will need
This is the hard part! You need some things that can only be found in the Nether.
Go to the Nether
You’ll need to build a Nether Portal to get to the Nether. If this is your first trip there, be careful! You will need good armour, a bow, and plenty of arrows. If you have armour with a Fire Resistance enchantment, so much the better.
Find a Nether Fortress
Find a Nether Fortress; this is a building made out of Nether Bricks.
A nether fortress; look out for the dark Nether Bricks.
Get some Nether Wart
Explore the fortress until you find some Nether Wart; it will be growing in Soulsand at the bottom of a staircase.
Collect all the Nether Wart, and dig up the Soul Sand while you’re at it. If you see more Soul Sand on your way back to your Portal, get some more.
Get Blaze Rods
Find Blazes, kill them and collect at least one Blaze Rod.
Be careful, Blazes are a dangerous enemy, and it’s better to pick them off with arrows from a distance.
You can find Blazes hanging out anywhere in a Nether Fortress, but sometimes you will find rooms with a Blaze Spawner: it’s dangerous to get too close to these.
Now head back to your Portal and get ready to brew!
Set up your Brewery
Nether Wart Farm
First, place the Soulsand you brought back, and plant some Nether Wart on it. This is your Nether Wart Farm. Nether wart is an ingredient in almost all the useful potions.
Craft a Brewing Stand
Use your Blaze Rod and some Cobblestone.
Place your brewing stand. Nearby you will also want a chest, a crafting table, and a well.
Water supply, brewing stand and storage.
To start brewing, you will need some glass, some Nether Wart, and some potion ingredients (check out the recipes to see what you’ll need).
Prepare Water Bottles
Make some glass bottles:
Fill three bottles with water by right-clicking on your well (the water bottles do not stack; they will appear elsewhere in your inventory, so make sure you have some free slots first.
Load the Brewing Stand
When you right-click on your Brewing Stand, the brewing interface will open.
Place the water-bottles in the bottom three spaces.
Add the first ingredient
The first ingredient will almost always be Nether Wart. Place it in the top slot. You will also need to add some Blaze Powderto power the brewing process. When you have added both of these, brewing will start.
When the brewing is completed (it takes 20 seconds), your water bottles will have been turned into potions! This potion is called Awkward Potion, and it is not useful on its own. You must add a second ingredient.
Add the second ingredient
It’s time to add a second ingredient. This ingredient will determine what kind of potion you are making. Glistering Melon will give you a Potion of Health; use Sugar for a Potion of Swiftness, Blaze Powder for a potion of Strength, or check out the other recipes here .
When this step has finished, you will have three useable potions!
Further ingredients can be added to make a stronger potion, or a splash potion that can be thrown at friends or enemies.
Makes the effects of your potion last longer.
Makes the effect of your potion stronger.
Makes a splash potion that can be thrown and will affect nearby players and mobs when it breaks.
Converts a splash potion into a lingering potion that can be thown and will form a cloud of potion gas that will affect anyone who walks into it.
Drinking Your Potion
Hold down the right mouse button, just like eating food.