diff --git a/public/app.js b/public/app.js
index a2441fb..73f8977 100644
--- a/public/app.js
+++ b/public/app.js
@@ -89,11 +89,23 @@ async function handleSnooze(slotId, minutes) {
   }
 }
 
+const ROAST_CACHE_KEY = "medis-roast-day";
+
+async function loadRoast(day) {
+  try {
+    const cached = JSON.parse(sessionStorage.getItem(ROAST_CACHE_KEY) || "null");
+    if (cached?.day === day && cached?.text) return cached;
+    const roast = await api.roast();
+    sessionStorage.setItem(ROAST_CACHE_KEY, JSON.stringify({ day: roast.day, text: roast.text }));
+    return roast;
+  } catch {
+    return { text: "Dein Gebrain wartet auf Koffein und Medis." };
+  }
+}
+
 async function refreshDashboard(stats) {
-  const [today, roast] = await Promise.all([
-    api.today(),
-    api.roast().catch(() => ({ text: "Dein Gebrain wartet auf Koffein und Medis." })),
-  ]);
+  const today = await api.today();
+  const roast = await loadRoast(today.day);
   renderSlots(today.slots, handleTake, handleSnooze);
   document.getElementById("roastText").textContent = roast.text;
 
diff --git a/server/ai.py b/server/ai.py
index c48e0be..c951a08 100644
--- a/server/ai.py
+++ b/server/ai.py
@@ -74,7 +74,7 @@ async def get_roast_of_the_day(db: aiosqlite.Connection, tz: ZoneInfo) -> dict[s
         source = "fallback"
     else:
         source = "ai"
-        await _set_cache(db, key, text)
+    await _set_cache(db, key, text)
 
     return {"text": text, "source": source, "day": day}
 
@@ -98,6 +98,6 @@ async def get_oracle(db: aiosqlite.Connection, tz: ZoneInfo) -> dict[str, Any]:
         source = "fallback"
     else:
         source = "ai"
-        await _set_cache(db, key, text)
+    await _set_cache(db, key, text)
 
     return {"text": text, "source": source, "week": week}