diff --git a/scripts/verify-battle-save-normalization.mjs b/scripts/verify-battle-save-normalization.mjs
index 521cf3e..388b467 100644
--- a/scripts/verify-battle-save-normalization.mjs
+++ b/scripts/verify-battle-save-normalization.mjs
@@ -16,7 +16,8 @@ try {
     mapWidth: 12,
     mapHeight: 8,
     validUnitIds: new Set(['liu-bei', 'guan-yu', 'rebel-1']),
-    validUsableIds: new Set(['roar', 'fireTactic', 'aid'])
+    validUsableIds: new Set(['roar', 'fireTactic', 'aid', 'bean', 'salve', 'wine']),
+    validItemIds: new Set(['bean', 'salve', 'wine'])
   };
   const validState = createValidBattleSaveState();
   const patchUnit = (index, patch) => validState.units.map((unit, unitIndex) => (unitIndex === index ? { ...unit, ...patch } : unit));
@@ -51,6 +52,7 @@ try {
     ['unknown bond unit id', { bonds: [{ ...validState.bonds[0], unitIds: ['liu-bei', 'ghost-unit'] }] }],
     ['invalid item stock count', { itemStocks: { 'liu-bei': { bean: -1 } } }],
     ['unknown item stock unit id', { itemStocks: { 'ghost-unit': { bean: 1 } } }],
+    ['unknown item stock item id', { itemStocks: { 'liu-bei': { phantomItem: 1 } } }],
     ['invalid buff turns', { battleBuffs: [{ ...validState.battleBuffs[0], turns: 0 }] }],
     ['unknown buff unit id', { battleBuffs: [{ ...validState.battleBuffs[0], unitId: 'ghost-unit' }] }],
     ['invalid status kind', { battleStatuses: [{ ...validState.battleStatuses[0], kind: 'poison' }] }],
diff --git a/src/game/scenes/BattleScene.ts b/src/game/scenes/BattleScene.ts
index e6a305f..319687b 100644
--- a/src/game/scenes/BattleScene.ts
+++ b/src/game/scenes/BattleScene.ts
@@ -11350,7 +11350,12 @@ export class BattleScene extends Phaser.Scene {
       mapWidth: battleMap.width,
       mapHeight: battleMap.height,
       validUnitIds: new Set(battleUnits.map((unit) => unit.id)),
-      validUsableIds: new Set(Object.keys(usableCatalog))
+      validUsableIds: new Set(Object.keys(usableCatalog)),
+      validItemIds: new Set(
+        Object.values(usableCatalog)
+          .filter((usable) => usable.command === 'item')
+          .map((usable) => usable.id)
+      )
     });
   }
 
diff --git a/src/game/state/battleSaveState.ts b/src/game/state/battleSaveState.ts
index bedcd0f..c053a67 100644
--- a/src/game/state/battleSaveState.ts
+++ b/src/game/state/battleSaveState.ts
@@ -73,6 +73,7 @@ type BattleSaveValidationOptions = {
   mapHeight?: number;
   validUnitIds?: ReadonlySet<string>;
   validUsableIds?: ReadonlySet<string>;
+  validItemIds?: ReadonlySet<string>;
 };
 
 const unitDirections = new Set<UnitDirection>(['south', 'east', 'north', 'west']);
@@ -127,7 +128,7 @@ export function isValidBattleSaveState(state: unknown, options: BattleSaveValida
   }
 
   if (
-    !isOptionalNestedCountRecord(state.itemStocks, options) ||
+    !isOptionalItemStockRecord(state.itemStocks, options) ||
     !isOptionalBuffArray(state.battleBuffs, options) ||
     !isOptionalStatusArray(state.battleStatuses, options) ||
     !isOptionalStatsRecord(state.battleStats, options) ||
@@ -267,7 +268,7 @@ function isBondArray(value: unknown, options: BattleSaveValidationOptions) {
   );
 }
 
-function isOptionalNestedCountRecord(value: unknown, options: BattleSaveValidationOptions) {
+function isOptionalItemStockRecord(value: unknown, options: BattleSaveValidationOptions) {
   if (value === undefined) {
     return true;
   }
@@ -280,7 +281,10 @@ function isOptionalNestedCountRecord(value: unknown, options: BattleSaveValidati
     ([unitId, stocks]) =>
       isKnownUnitId(unitId, options) &&
       isRecord(stocks) &&
-      Object.values(stocks).every((count) => Number.isInteger(count) && Number(count) >= 0)
+      Object.entries(stocks).every(
+        ([itemId, count]) =>
+          (!options.validItemIds || options.validItemIds.has(itemId)) && Number.isInteger(count) && Number(count) >= 0
+      )
   );
 }