diff --git a/cf-lib/data/Item.lua b/cf-lib/data/Item.lua
index 5934a72..1cfffcf 100644
--- a/cf-lib/data/Item.lua
+++ b/cf-lib/data/Item.lua
@@ -57,11 +57,4 @@ function Item:itemsPerRocket(count)
     return self
 end
 
---- Sets the default import location for space platforms
---- @param planetName string The name of the planet
-function Item:defaultImportLocation(planetName)
-    self.prototype.default_import_location = planetName
-    return self
-end
-
 return Item
\ No newline at end of file
diff --git a/cf-lib/data/Recipe.lua b/cf-lib/data/Recipe.lua
index 213aa14..199005c 100644
--- a/cf-lib/data/Recipe.lua
+++ b/cf-lib/data/Recipe.lua
@@ -187,17 +187,6 @@ function Recipe:removeResult(resultName)
     return self
 end
 
---- Adds an additional crafting category
---- @param categoryName string The name of the crafting category
-function Recipe:addCategory(categoryName)
-    local categories = self.prototype.additional_categories or {}
-    self.prototype.additional_categories = categories
-    if not table.contains(categories, categoryName) then
-        table.insert(categories, categoryName)
-    end
-    return self
-end
-
 --- Adds the recipe to a technology
 --- @param technology string|table The name of the technology or the technology table
 function Recipe:unlockedByTechnology(technology)