diff --git a/techage.lua b/techage.lua
index 0854f78..80fe12d 100644
--- a/techage.lua
+++ b/techage.lua
@@ -64,4 +64,34 @@ minetest.register_craft({
 
 techage.add_grinder_recipe({input="multidecor:consolidated_oil", output="techage:plastic_granules"})
 techage.add_grinder_recipe({input="ethereal:wild_onion_plant 10", output="dye:white"})
-techage.add_grinder_recipe({input="default:ice", output="default:snow 3"})
\ No newline at end of file
+techage.add_grinder_recipe({input="default:ice", output="default:snow 3"})
+
+local function mod_loaded(name)
+    return (minetest.get_modpath(name) ~= nil)
+end
+
+local function sieve_dirt()
+    return ItemStack("default:sand")
+end
+
+techage.register_sieving_recipe("default:dirt",                        sieve_dirt)
+techage.register_sieving_recipe("default:dirt_with_coniferous_litter", sieve_dirt)
+techage.register_sieving_recipe("default:dirt_with_dry_grass",         sieve_dirt)
+techage.register_sieving_recipe("default:dirt_with_grass",             sieve_dirt)
+techage.register_sieving_recipe("default:dirt_with_rainforest_litter", sieve_dirt)
+techage.register_sieving_recipe("default:dirt_with_snow",              sieve_dirt)
+techage.register_sieving_recipe("default:dry_dirt",                    sieve_dirt)
+techage.register_sieving_recipe("default:dry_dirt_with_dry_grass",     sieve_dirt)
+
+if mod_loaded("ethereal") then
+    techage.register_sieving_recipe("ethereal:bamboo_dirt",            sieve_dirt)
+    techage.register_sieving_recipe("ethereal:cold_dirt",              sieve_dirt)
+    techage.register_sieving_recipe("ethereal:crystal_dirt",           sieve_dirt)
+    techage.register_sieving_recipe("ethereal:dry_dirt",               sieve_dirt)
+    techage.register_sieving_recipe("ethereal:fiery_dirt",             sieve_dirt)
+    techage.register_sieving_recipe("ethereal:gray_dirt",              sieve_dirt)
+    techage.register_sieving_recipe("ethereal:grove_dirt",             sieve_dirt)
+    techage.register_sieving_recipe("ethereal:jungle_dirt",            sieve_dirt)
+    techage.register_sieving_recipe("ethereal:mushroom_dirt",          sieve_dirt)
+    techage.register_sieving_recipe("ethereal:prairie_dirt",           sieve_dirt)
+end
\ No newline at end of file