diff --git a/infinite_storage_chest.lua b/infinite_storage_chest.lua
index c0b2b27b..218b4191 100644
--- a/infinite_storage_chest.lua
+++ b/infinite_storage_chest.lua
@@ -68,9 +68,8 @@ local function do_item(name, count, inv, storage)
         end
 
         diff = math.min(prev, -diff)
-
-        new_amount = prev - diff
-        inv.insert({name = name, count = diff})
+        local inserted = inv.insert({name = name, count = diff})
+        new_amount = prev - inserted
     end
 
     if new_amount == 0 then
diff --git a/map_gen/presets/beach.lua b/map_gen/presets/beach.lua
index 53220c08..4a3730c5 100644
--- a/map_gen/presets/beach.lua
+++ b/map_gen/presets/beach.lua
@@ -15,10 +15,10 @@ sand_shape = b.change_tile(sand_shape, true, 'sand-1')
 local value = b.manhattan_value
 
 local ores = {
-    {b.resource(b.full_shape, 'iron-ore', value(250, 1)), 6},
-    {b.resource(b.full_shape, 'copper-ore', value(250, 1)), 4},
-    {b.resource(b.full_shape, 'stone', value(250, 1)), 1},
-    {b.resource(b.full_shape, 'coal', value(250, 1)), 1}
+    {b.resource(b.full_shape, 'iron-ore', value(125, 0.5)), 6},
+    {b.resource(b.full_shape, 'copper-ore', value(125, 0.5)), 4},
+    {b.resource(b.full_shape, 'stone', value(125, 0.5)), 1},
+    {b.resource(b.full_shape, 'coal', value(125, 0.5)), 1}
 }
 
 uranium_ore = b.resource(b.full_shape, 'uranium-ore', value(50, 0.25))