Alt-F4
Minecraft Java mod. Downloads from the MC Java Mods app on Android.
⬇ Download on CurseForge




Overview
This mod is a simple expansion on the concept behind the vanilla furnace, it features a furnace which has a few buffer stacks for output, no more wasting fuel because the output has no where to go, as well as a single buffer stacks for both the fuel input and the "to smelt" stack. This furnace also caches experience so that you can extract it and it doesn't get voided if you decide you wish to automate your smelting. Oh, and everything is customizable via a JSON file ;)
GUI
The gui should be intuitive to use and looks as follows:

It shows you visually and through a graphical element modelled after the player's experience bar how much experience it holds. It is important to note that the experience in the gui rounds down to the nearest integer because of how communication between the tile entity and the GUI works.
You can place an experience crystal in the slot underneath the first output slot and if the furnace is storing 10 or more experience it will put it into the crystal and place it in the output slot.
JEI Integration

You can see all of the registered recipes through JEI, the fantastic Item/Recipe handler made by Mezz, check out the optional libraries for the file downloads. *This is an example, showing differing smelt times. None are changed by default*
Recipes

The Experience Crystal will render the approximate amount of experience it contains inside it, as well as display it in the tooltip.
Configurability
This mod has an extensive configurability aspect to it, all of the recipes registered for the furnace get printed out to a json file for reference on gameload, and then get read back in and fill the Evolved Furnace's recipe registry, you can insert new recipes or change the properties of existing ones by adding entries to the generated user file, make sure that the json format is valid otherwise the game will crash (no comma after the last entry). The items shown in the JEI screenshot were modified by adding these items to the JSON file. *this is an example, none are changed by default*
[
{
"modNameInput": "minecraft",
"stackNameInput": "quartz_ore",
"metaDataInput": 32767,
"ignoreInputMeta": true,
"stackSizeInput": 1,
"nbtStringInput": null,
"modNameOutput": "minecraft",
"stackNameOutput": "quartz",
"metaDataOutput": 0,
"stackSizeOutput": 1,
"nbtStringOutput": null,
"experience": 0.2,
"burnTime": 800,
"toRegister": true
},
{
"modNameInput": "minecraft",
"stackNameInput": "coal_ore",
"metaDataInput": 32767,
"ignoreInputMeta": true,
"stackSizeInput": 1,
"nbtStringInput": null,
"modNameOutput": "minecraft",
"stackNameOutput": "coal",
"metaDataOutput": 0,
"stackSizeOutput": 1,
"nbtStringOutput": null,
"experience": 0.1,
"burnTime": 600,
"toRegister": true
},
{
"modNameInput": "minecraft",
"stackNameInput": "redstone_ore",
"metaDataInput": 32767,
"ignoreInputMeta": true,
"stackSizeInput": 1,
"nbtStringInput": null,
"modNameOutput": "minecraft",
"stackNameOutput": "redstone",
"metaDataOutput": 0,
"stackSizeOutput": 1,
"nbtStringOutput": null,
"experience": 0.7,
"burnTime": 400,
"toRegister": true
}
]
Using the nbt tag feature is a little tricky, but a sample tag would be "{ench:[0:{lvl:1s,id:8s}]}" to place level one depth strider as the only enchantment on an item.
If you wish to remove a recipe from the registry, copy it's entry over from the reference json and change "to register" to false.
Caveats
As of beta release 0.2.x for both 1.7.10 and 1.8.8/9 the recipe registry runs on world/server start instead of game load which mean that it is guaranteed to catch all regular properly registered furnace recipes from other mods. I will have a look at minetweaker in the future.
Screenshot

- Edition: Minecraft Java
- File type: .jar
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as Alt-F4-1.7.10-0.0.1.5.jar — drop this file into the mods folder
- Download size: 74 KB
- Download link checked 13 Oct 2026 — working
These come from our own check of the pack file, not from the source page.