Blast furnacing: Blast furnacing is a method of forging which doubles your Iron production or gold production crucial in town industry
- # https://www.planetminecraft.com/data-pack/blast-blast-furnaces/

Building the Structure:

• The structure needs the following blocks:

  
  hopper (in the middle)
  furnace or blast furnace (only 1! adjacent to the hopper)
  And either of these brick-blocks for the rest of the structure as seen in the gallery:
  bricks any brick type block works

For the structure to be valid, the block positions around the central hopper have to be filled with these brick-blocks similar to what is shown in the gallery. As you can see in the Pictures you need to place a hopper next to a furnace or blast furnace. In the hopper, place this "recipe" out of 4 iron blocks, 2 magma blocks and 1 diamond block inside it and then throw a fire charge from your Inventory into the hopper cavity. These are not lost! If you destroy the hopper you'll get these items back.