diff --git a/changelog.txt b/changelog.txt
index b36767a..0bb15ca 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,6 +1,8 @@
 ---------------------------------------------------------------------------------------------------
 Version: 2.1.8
-Date: 2025-04-07
+Date: 2025-04-08
+  Changes:
+    - Space Age: Asteroid crushing recipe now affected by productivity research
 ---------------------------------------------------------------------------------------------------
 Version: 2.1.7
 Date: 2025-03-22
diff --git a/data-util.lua b/data-util.lua
index eacab34..f121833 100644
--- a/data-util.lua
+++ b/data-util.lua
@@ -749,16 +749,13 @@ end
 function util.add_effect(technology_name, effect)
   local technology = data.raw.technology[technology_name]
   if technology then
-    log("2")
     if not technology.effects then technology.effects = {} end
     if effect and effect.type == "unlock-recipe" then
       if not data.raw.recipe[effect.recipe] then
         return
       end
     end
-    log("3")
     table.insert(technology.effects, effect)
-    log(serpent.block(technology.effects))
   end
 end
 
@@ -767,7 +764,6 @@ function util.add_to_productivity_research(technology_name, recipe_name, amount)
   if not amount then amount = 0.1 end
   local recipe = data.raw.recipe[recipe_name]
   if recipe then
-    log("1")
     util.add_effect(technology_name, { type = "change-recipe-productivity", recipe = recipe_name, change = amount})
   end
 end