Minecraft: Edition

This achievement can be easily unlocked in the tutorial world but note that the layout of the tutorial world sometimes changes but the method to unlocking is still the same.
Load up the tutorial and complete the basic features so you can go through the opening in the wall.

Once you have gone through the wall you're in a town, pass the water fountain and keep going till you come to an area with potions bottles in frames by it, the area has a cauldron, chest and brewing stand.

Firstly grab everything from the chests then with the glass bottles equipped press at the cauldrons to turn them into water bottles (3). Now press onto the brewing stand and place your 3 water bottles into the stand and place Nether Wart at the top and let it brew.

You should now have 3 Awkward potions, now place Magma Cream at the top and let it brew again which will give you your Fire Resistance potions. Grab them and head over to the room with the anvil opposite.

Drink the potion and break the cobblestone in front of the lava and swim!

Here's a video (The potion area may be different but the method is the same)

This is easily attainable on the tutorial level. Go up the stairs, and into the first house on the right. Pick up the empty glass bottles, the nether wart and magna cream. Now equip the bottles and fill them using the water in the same room. Go to the brewing cauldron, and put the glass bottle on the bottom and the nether wart on top, which will equip an awkward potion. With the awkward potions in place, replace the nether wart with magna cream. Wait until it brews "Potion of Fire Resistance". Take this off the cauldron and equip it. Go across from this house, drink the potion, and cut the stone that seals off the lava. Once you break the block, walk through the lava to unlock the achievement.

Here's a short video we made recently with full commentary showing all the necessary steps to get this achievement in your survival game! Hope it helps, enjoy! :)

In the new game mode mini games, start up a public game with a 2nd controller. Pick the map crucible, then head for the chests in the middle. One of them has a fire resistance potion. Just head down to the lava, drink it up and walk in.

Hope this helps.

Start the Tutorial and walk up the stairs into the brewery. Pick up an empty bottle, a nether wart and the magma cream from the chest. Fill the bottle with water and mix the items at the brewing stand into the potion of fire resistance.

Turn around, walk to the blacksmith and destroy the wall with the lava behind it. Drink the potion and jump into the lava to pop the achievement.

How to craft a fire-resistance potion in Survival Mode

1. Open the Brewing Stand menu
First, open your brewing stand menu by interacting with a brewing stand by pressing .

2. Add Blaze Powder to Activate the Brewing Stand
Start by adding blaze powder in the far left box to activate the brewing stand.

3. Add Items to make this Potion
In the Brewing Stand menu, you place ingredients in the top box and the potions are created in the bottom three boxes.

To make a Potion of Fire Resistance (3:00), you will need 1 water bottle, 1 nether wart, and 1 magma cream.

4. Add the Water Bottle
First, place the water bottle in one of the bottom boxes in the Brewing Stand menu.

TIP: You can make up to 3 potions at a time by adding 3 water bottles to the Brewing Stand.
Add the Nether Wart

5. Next, add the nether wart to the top box in the Brewing Stand menu.

You will know that the brewing process has begun because the bubbles will turn white and the arrow will turn white to show the progress. Once the brewing is done, the nether wart will disappear.

At this point, your bottle will contain an Awkward Potion which has no effects.

6. Next, add the magma cream to the top box in the Brewing Stand menu.

Once the brewing process is complete, you will hear a "glug glug glug" sound, and the magma cream will disappear. The Potion of Fire Resistance (3:00) will now be finished.

TIP: If you hover over the potion in the Brewing Stand, you will see the name of the potion and its effects.
Completed potion of fire resistance

Your bottle will now contain a Potion of Fire Resistance (3:00).

If you drink the Potion of Fire Resistance (3:00), it will give you fire resistance for 3 minutes. This potion is extremely useful when you want to survive in lava, preferably when exploring the Nether.

At this point, you can add this Potion of Fire Resistance (3:00) to your inventory and this achievement should pop if you haven't got it already:



Next, you will need to find a pool of lava. Lava pools can be easily found underground or in the Nether.

Once you have found one, simply drink the potion, enter the pool, and you will unlock this achievement.

Here's a video to help:

A slightly edited version of: https://www.digminecraft.com/brewing_recipes/make_potion_fir...
All credit for this guide goes to the original writer.