diff --git a/src/caches.lua b/src/caches.lua
index 078dacd..5fb9a90 100644
--- a/src/caches.lua
+++ b/src/caches.lua
@@ -2,7 +2,7 @@ local replacements = {fuel = {}}
 local http = ...
 
 IMPORT("maxn", "copy", "insert", "sort", "match", "sub")
-IMPORT("true_str", "is_table", "valid_item", "table_merge", "table_replace", "rcp_eq")
+IMPORT("true_str", "is_table", "valid_item", "table_merge", "table_replace", "table_eq")
 IMPORT("fmt", "reg_items", "reg_aliases", "reg_nodes", "is_cube", "get_cube", "ItemStack")
 IMPORT("is_group", "extract_groups", "item_has_groups", "groups_to_items", "get_group_stereotype")
 
@@ -248,11 +248,7 @@ local old_clear_craft = core.clear_craft
 core.clear_craft = function(def)
 	old_clear_craft(def)
 
-	if true_str(def) then
-		return -- TODO
-	elseif is_table(def) then
-		return -- TODO
-	end
+	-- TODO: hide in crafting guide
 end
 
 local function resolve_aliases(hash)
@@ -274,7 +270,7 @@ local function resolve_aliases(hash)
 					local rcp_new = copy(i3.recipes_cache[newname][j])
 					      rcp_new.output = oldname
 
-					if rcp_eq(rcp_old, rcp_new) then
+					if table_eq(rcp_old, rcp_new) then
 						similar = true
 						break
 					end
diff --git a/src/common.lua b/src/common.lua
index 628b9b6..834d2cc 100644
--- a/src/common.lua
+++ b/src/common.lua
@@ -216,18 +216,22 @@ local function array_diff(t1, t2)
 	return diff
 end
 
-local function rcp_eq(rcp, rcp2)
-	if rcp.type   ~= rcp2.type   then return end
-	if rcp.width  ~= rcp2.width  then return end
-	if #rcp.items ~= #rcp2.items then return end
-	if rcp.output ~= rcp2.output then return end
+local function table_eq(t1, t2)
+	local ty1, ty2 = type(t1), type(t2)
+	if ty1 ~= ty2 then return end
 
-	for i, item in pairs(rcp.items) do
-		if item ~= rcp2.items[i] then return end
+	if ty1 ~= "table" and ty2 ~= "table" then
+		return t1 == t2
 	end
 
-	for i, item in pairs(rcp2.items) do
-		if item ~= rcp.items[i] then return end
+	for k, v in pairs(t1) do
+		local v2 = t2[k]
+		if v2 == nil or not table_eq(v, v2) then return end
+	end
+
+	for k, v in pairs(t2) do
+		local v1 = t1[k]
+		if v1 == nil or not table_eq(v1, v) then return end
 	end
 
 	return true
@@ -764,7 +768,7 @@ local _ = {
 	is_table = is_table,
 	table_merge = table_merge,
 	table_replace = table_replace,
-	rcp_eq = rcp_eq,
+	table_eq = table_eq,
 	array_diff = array_diff,
 
 	-- Math
diff --git a/tests/test_custom_recipes.lua b/tests/test_custom_recipes.lua
index 0bcabcf..acac746 100644
--- a/tests/test_custom_recipes.lua
+++ b/tests/test_custom_recipes.lua
@@ -11,32 +11,39 @@ mt3:get_meta():set_string("description", "Worn Pick")
 mt3:get_meta():set_string("color", "yellow")
 mt3:set_wear(10000)
 
-minetest.register_craft({
+minetest.register_craft {
 	output = mt:to_string(),
 	type = "shapeless",
 	recipe = {
 		"default:wood",
 		mt2:to_string(),
 	},
-})
+}
 
-minetest.register_craft({
+minetest.register_craft {
 	output = mt3:to_string(),
 	type = "shapeless",
 	recipe = {
 		"default:pick_mese",
 		"default:diamond",
 	},
-})
+}
+
+minetest.clear_craft {
+	recipe = {
+		{"default:sand", "default:sand"},
+		{"default:sand", "default:sand"},
+	},
+}
 
 i3.register_craft {
 	url = "https://raw.githubusercontent.com/minetest-mods/i3/main/tests/test_online_recipe.json"
 }
 
-i3.register_craft({
+i3.register_craft {
 	result = "default:ladder_wood 2",
 	items = {"default:copper_ingot 7, default:tin_ingot, default:steel_ingot 2"},
-})
+}
 
 i3.register_craft {
 	result = "default:tree",
@@ -56,7 +63,7 @@ i3.register_craft {
 	}
 }
 
-i3.register_craft({
+i3.register_craft {
 	grid = {
 		"X",
 		"#",
@@ -68,9 +75,9 @@ i3.register_craft({
 		['X'] = "default:glass 2",
 	},
 	result = "default:mese 3",
-})
+}
 
-i3.register_craft({
+i3.register_craft {
 	grid = {
 		"X",
 		"#X",
@@ -82,9 +89,9 @@ i3.register_craft({
 		['X'] = "default:glass 2",
 	},
 	result = "default:mese 3",
-})
+}
 
-i3.register_craft({
+i3.register_craft {
 	grid = {
 		"X",
 	},
@@ -93,10 +100,10 @@ i3.register_craft({
 		['X'] = "default:glass 2",
 	},
 	result = "default:mese 3",
-})
+}
 
 
-i3.register_craft({
+i3.register_craft {
 	grid = {
 		"X#",
 	},
@@ -105,9 +112,9 @@ i3.register_craft({
 		['X'] = "default:glass 2",
 	},
 	result = "default:mese 3",
-})
+}
 
-i3.register_craft({
+i3.register_craft {
 	grid = {
 		"X#X",
 	},
@@ -116,9 +123,9 @@ i3.register_craft({
 		['X'] = "default:glass 2",
 	},
 	result = "default:mese 3",
-})
+}
 
-i3.register_craft({
+i3.register_craft {
 	grid = {
 		"X#XX",
 	},
@@ -127,9 +134,9 @@ i3.register_craft({
 		['X'] = "default:glass 2",
 	},
 	result = "default:mese 3",
-})
+}
 
-i3.register_craft({
+i3.register_craft {
 	grid = {
 		"X#XX",
 		"X#X",
@@ -139,9 +146,9 @@ i3.register_craft({
 		['X'] = "default:glass 2",
 	},
 	result = "default:mese 3",
-})
+}
 
-i3.register_craft({
+i3.register_craft {
 	grid = {
 		"X#XX",
 		"X#X",
@@ -152,9 +159,9 @@ i3.register_craft({
 		['X'] = "default:glass 2",
 	},
 	result = "default:mese 3",
-})
+}
 
-i3.register_craft({
+i3.register_craft {
 	grid = {
 		"X##XX",
 	},
@@ -163,9 +170,9 @@ i3.register_craft({
 		['X'] = "default:glass 2",
 	},
 	result = "default:mese 3",
-})
+}
 
-i3.register_craft({
+i3.register_craft {
 	grid = {
 		"X##X#X",
 	},
@@ -174,9 +181,9 @@ i3.register_craft({
 		['X'] = "default:glass 2",
 	},
 	result = "default:mese 3",
-})
+}
 
-i3.register_craft({
+i3.register_craft {
 	grid = {
 		"X##X#X",
 		"",
@@ -187,9 +194,9 @@ i3.register_craft({
 		['X'] = "default:glass 2",
 	},
 	result = "default:mese 3",
-})
+}
 
-i3.register_craft({
+i3.register_craft {
 	grid = {
 		"X  #",
 		" ## ",
@@ -201,9 +208,9 @@ i3.register_craft({
 		['X'] = "default:glass 2",
 	},
 	result = "default:mese 3",
-})
+}
 
-i3.register_craft({
+i3.register_craft {
 	grid = {
 		"X  #",
 		" ## ",
@@ -215,9 +222,9 @@ i3.register_craft({
 		['X'] = "default:glass",
 	},
 	result = "default:mese 3",
-})
+}
 
-i3.register_craft({
+i3.register_craft {
 	grid = {
 		"X  #",
 		" ## ",
@@ -230,9 +237,9 @@ i3.register_craft({
 		['X'] = "default:glass",
 	},
 	result = "default:mese 3",
-})
+}
 
-i3.register_craft({
+i3.register_craft {
 	grid = {
 		"X  #",
 		" ## ",
@@ -245,10 +252,10 @@ i3.register_craft({
 		['X'] = "default:glass",
 	},
 	result = "default:mese 3",
-})
+}
 
 
-i3.register_craft({
+i3.register_craft {
 	grid = {
 		"X  #",
 		" ## ",
@@ -262,9 +269,9 @@ i3.register_craft({
 		['X'] = "default:glass",
 	},
 	result = "default:mese 3",
-})
+}
 
-i3.register_craft({
+i3.register_craft {
 	grid = {
 		"X  #",
 		" ## ",
@@ -278,9 +285,9 @@ i3.register_craft({
 		['X'] = "default:glass",
 	},
 	result = "default:mese 3",
-})
+}
 
-i3.register_craft({
+i3.register_craft {
 	grid = {
 		"X  #",
 		" ## ",
@@ -294,9 +301,9 @@ i3.register_craft({
 		['X'] = "default:glass",
 	},
 	result = "default:mese 3",
-})
+}
 
-i3.register_craft({
+i3.register_craft {
 	grid = {
 		"X  #",
 		" ## ",
@@ -310,9 +317,9 @@ i3.register_craft({
 		['X'] = "default:glass",
 	},
 	result = "default:mese 3",
-})
+}
 
-i3.register_craft({
+i3.register_craft {
 	grid = {
 		"X  #",
 		" ## ",
@@ -328,4 +335,4 @@ i3.register_craft({
 		['X'] = "default:glass",
 	},
 	result = "default:mese 3",
-})
+}