Discerning Furnace
Modby supersaiyansubtlety
Only allow smeltable items in furnaces.
Type
Mod
CurseForge Downloads
137,791
CurseForge ID
428966
Modrinth Downloads
55,081
Modrinth ID
G3Nz6HN4
Last Updated
Jun 6, 2026
Description
[](https://gitlab.com/supersaiyansubtlety/discerning_furnace/-/blob/master/LICENSE)
[](https://gitlab.com/supersaiyansubtlety/discerning_furnace)
[](https://gitlab.com/supersaiyansubtlety/discerning_furnace/-/issues)
[](https://crwd.in/discerning-furnace)
[](https://modrinth.com/mod/discerning-furnace/versions)
[](https://www.curseforge.com/minecraft/mc-mods/discerning-furnace/files)
[](https://discord.gg/xABmPngXAH)
---
### Only allow smeltable items in furnaces.
Works client-side, server-side, and in single player.
On clients, it prevents the player from inserting unsmeltable items though GUIs.
On servers, it prevents hoppers and other blocks from inserting unsmeltable items.
Prior to version 1.0.8 there was no client-side functionality, only server-sided block insertions where handled.
[zephaniahnoah](https://www.curseforge.com/members/zephaniahnoah/projects) has also created a
[Forge port](https://www.curseforge.com/minecraft/mc-mods/discerning-furnace-forge).
This tiny mod (~32 lines of code) prevents un-smeltable items from inserting to the input slot of a furnace.
This is useful for sorting items and for preventing clogs in furnace arrays.
It affects all vanilla furnaces, and modded furnaces that don't have their own way of limiting inputs should work as
well.
---
Translating
[](https://crwd.in/discerning-furnace)
If you'd like to help translate Discerning Furnace, you can do so on
[Crowdin](https://crwd.in/discerning-furnace).
---
This mod is only for Fabric (works on Quilt, too!) and I won't be porting it to Forge. The license is MIT, however,
~~so anyone else is free to port it.~~ and [zephaniahnoah](https://www.curseforge.com/members/zephaniahnoah/projects)
has [ported it to Forge](https://www.curseforge.com/minecraft/mc-mods/discerning-furnace-forge)!
I'd appreciate links back to this page if you port or otherwise modify this project, but links aren't required.
Compatibility
Mod Loaders
Game Versions
Similar Mods
TweakerMore
A collection of client-side tweak kits to enhance your Minecraft game experience. Tweak Minecraft and beyond!
Traveler's Compass
A compass that will help you find any mob, block or item nearby
Odyssey Allies
Form a guild to live and work together with your friends. Form a party to fight and adventure together with allies. Chat...
Particle Interactions
Adds particles to more interactions in the game, such as placing blocks or stripping logs. Fully configurable and client...
Boosted Brightness
Allows you to set your brightness beyond default levels.
Illager Additions
This is a mod about illager content