AUTOMATIC POTION BREWER

Materials List

Overview: what the Automatic Potion Brewer is and does

An automated brewing system that feeds ingredients into a brewing stand in sequence and collects finished potions. Requires precise timing to add ingredients in the correct order.

As a utility build it automates a processing job — smelting, brewing, composting, or generating a resource — to save repetitive manual work. It is an advanced build that leans on careful piston timing and push-limit management, so plan the sequence before you place blocks.

It fits in roughly 3W x 5L x 6H and works in Minecraft 1.5+ through to the current 1.21 release.

How it works: the redstone mechanics

Droppers and hoppers deliver ingredients into a brewing stand in the strict order potions require: water bottles, then nether wart, then the modifier, then the amplifier or duration item. A hopper-clock timer paces each stage to the roughly 20-second brew time, and finished potions drain into a chest below.

The core parts doing the work are brewing Stand, hopper, dropper, redstone Comparator, and redstone Repeater; the remaining materials are structure and wiring that hold those pieces in the right relationship.

Because it automates a processing step, the limiting factor is the machine's own cycle time, and the redstone simply has to feed it in the correct order and rhythm.

How to build it

1. 1Place the brewing stand as the center of the system.
2. 2Place a hopper on top feeding blaze powder (fuel) into the stand.
3. 3Place hoppers below the brewing stand to collect finished potions into a chest.
4. 4Build an ingredient delivery system using droppers and hoppers above the stand.
5. 5Wire a timer circuit (hopper clock) to dispense ingredients at 20-second intervals (brewing time).
6. 6Load ingredients in order: water bottles first, then nether wart, then modifier, then duration/amplifier.
7. 7Each dropper stage fires after the previous brewing cycle completes.
8. 8Test with a simple potion recipe before building the full multi-stage system.

Uses & applications

• ▸As a utility build it automates a processing job — smelting, brewing, composting, or generating a resource — to save repetitive manual work.
• ▸Built from 1× brewing Stand, 6× hopper, 3× dropper, and 2× redstone Comparator and more, it slots into a survival base as a advanced-level project.
• ▸Connect its input and output chests to a wider item network so it processes resources unattended.
• ▸Scale the array up by repeating the unit once the single version works.

Tips & common mistakes

• !Add each ingredient only after the previous brew cycle finishes; rush the timing and you waste ingredients on a stand that is still busy.
• !Build and time one section or layer completely before chaining the rest; debugging the whole contraption at once is far harder than verifying it stage by stage.
• !Remember a powered hopper is locked, not active — keep stray redstone away from the hopper lines unless you deliberately want to gate item flow.

Automatic Potion Brewer FAQ