To make a Potion of Fire Resistance in Minecraft, follow these steps:

1. Gather materials:
   • Water bottles
   • Nether wart
   • Magma cream (crafted from a slime ball and blaze powder)
   • Blaze powder (for fueling the brewing stand)
   • Optional: Redstone dust (to extend potion duration)
2. Craft magma cream:
   • Combine a slime ball with blaze powder in the crafting table.
3. Use the brewing stand:
   • Place blaze powder in the fuel slot to activate the brewing stand.
   • Put water bottles in the bottom slots.
   • Add nether wart to the top slot and wait for the brewing process to finish. This creates an Awkward Potion, the base for most potions.
   • Next, add magma cream to the top slot and wait for the brewing to complete. This produces a Potion of Fire Resistance lasting 3 minutes.
4. Extend potion duration (optional):
   • To make the potion last 8 minutes instead of 3, place the 3-minute Fire Resistance Potion in the brewing stand and add redstone dust to the top slot. Wait for the brewing to finish.

The Potion of Fire Resistance protects you from all fire-related damage and allows you to swim in lava without harm