There are a few items in Rustic which are used solely as crafting ingredients, and are not mentioned on other pages of the wiki.

• Tallow
  • Obtained by smelting rotten flesh.
  • Can be used to craft candles.
  • Can be disabled in the mod's config file.
• Tiny Pile of Iron Dust
  • Obtained by evaporating ironberry juice.
  • Can be smelted into an iron nugget.