Discerning Furnace

Smart Furnace for Your Minecraft

This compact mod solves a common automation problem in Minecraft - it prevents unsmeltable items from entering furnaces. This ensures your sorting systems and automatic furnace arrays work without failures and clogs.

The mod functions on all game levels: in single player, on client, and on server. On the client side, it blocks player attempts to place unsmeltable items through furnace interfaces. On the server, it prevents insertion of such items through hoppers and other automation blocks.

Works with all standard furnaces from vanilla game, as well as most modified furnaces that don't have their own input slot limitation system.

Versions prior to 1.0.8 had only server functionality, but now the mod is fully integrated on all game levels.

Developer zephaniahnoah created a version for Forge, so now the mod is available for both popular loaders.

Despite its simplicity (only about 32 lines of code), this mod significantly simplifies the organization of automatic smelting systems and prevents accidental errors during resource sorting.