diff --git a/frontend/js/main.js b/frontend/js/main.js
index 912e1fd..ef29427 100644
--- a/frontend/js/main.js
+++ b/frontend/js/main.js
@@ -868,7 +868,7 @@ function showModal(html, onSubmit) {
   overlay.querySelector("#modal-cancel").onclick = () => closeModal();
   overlay.querySelector("#modal-ok").onclick = async () => {
     const ok = await onSubmit(overlay);
-    if (ok !== false) { closeModal(); renderScreen(state.screen); }
+    if (ok !== false) { closeModal(); if (ok !== "norender") renderScreen(state.screen); }
   };
   setTimeout(() => overlay.querySelector("input")?.focus(), 50);
 }
@@ -1689,6 +1689,7 @@ function showAddIngredientModal(cookingMethods, onAdd) {
         _product: null,
       });
     }
+    return "norender"; // sub-modal: close without re-rendering parent screen
   });
 
   const overlays = document.querySelectorAll(".modal-overlay");