diff --git a/src/App.css b/src/App.css
index dad62694..eeada1b6 100644
--- a/src/App.css
+++ b/src/App.css
@@ -17,7 +17,7 @@
     align-items: center;
     height: var(--header-height);
     box-sizing: border-box;
-    border-bottom: 1px solid;
+    border-bottom: 1px solid #ddd;
 }
 
 .sider {
diff --git a/src/components/RecipeForm/index.tsx b/src/components/RecipeForm/index.tsx
index d46996af..3ac7bb04 100644
--- a/src/components/RecipeForm/index.tsx
+++ b/src/components/RecipeForm/index.tsx
@@ -1,10 +1,11 @@
-import { Button } from "antd";
+import { Button, Tooltip } from "antd";
 import InputSwitch from "../InputSwitch";
 import "./style.css";
 import {
     useSelectedRecipeId,
     useFieldsToDisplay,
     useIsPacking,
+    useIsOriginalRecipe,
 } from "../../state/store";
 
 interface RecipeFormProps {
@@ -15,6 +16,7 @@ const RecipeForm = ({ onStartPacking }: RecipeFormProps) => {
     const recipeId = useSelectedRecipeId();
     const fieldsToDisplay = useFieldsToDisplay();
     const isPacking = useIsPacking();
+    const isOriginalRecipe = useIsOriginalRecipe();
 
     return (
         <div className="recipe-form">
@@ -39,15 +41,21 @@ const RecipeForm = ({ onStartPacking }: RecipeFormProps) => {
                 </div>
             )}
             {recipeId && (
-                <Button
-                    onClick={onStartPacking}
-                    color="primary"
-                    variant="filled"
-                    disabled={isPacking}
-                    style={{ width: "100%" }}
+                <Tooltip
+                    title={
+                        isOriginalRecipe ? "Adjust any parameter to re-run" : ""
+                    }
                 >
-                    Re-run
-                </Button>
+                    <Button
+                        onClick={onStartPacking}
+                        color="primary"
+                        variant="filled"
+                        disabled={isPacking || isOriginalRecipe}
+                        style={{ width: "100%" }}
+                    >
+                        <strong>Re-run</strong>
+                    </Button>
+                </Tooltip>
             )}
         </div>
     );
diff --git a/src/state/store.ts b/src/state/store.ts
index da1eb0e1..4672cfda 100644
--- a/src/state/store.ts
+++ b/src/state/store.ts
@@ -107,10 +107,11 @@ export const useRecipeStore = create<RecipeStore>()(
             const remainingRecipesToLoad = recipeIds.filter(
                 (id) => id !== initialIdToLoad
             );
-            Promise.all(remainingRecipesToLoad.map((id) => loadRecipe(id)))
-                .catch((err) => {
-                    console.error("Error loading remaining recipes:", err);
-                });
+            Promise.all(
+                remainingRecipesToLoad.map((id) => loadRecipe(id))
+            ).catch((err) => {
+                console.error("Error loading remaining recipes:", err);
+            });
         },
 
         selectRecipe: async (recipeId) => {
@@ -340,6 +341,12 @@ export const useResultUrl = () => {
     return path;
 };
 
+export const useIsOriginalRecipe = () => {
+    const recipe = useCurrentRecipeData();
+    if (!recipe) return true;
+    return Object.keys(recipe.edits).length === 0;
+};
+
 // Action selectors
 export const useLoadInputOptions = () =>
     useRecipeStore((s) => s.loadInputOptions);