diff --git a/static/src/app/services/pos_store_patch.js b/static/src/app/services/pos_store_patch.js
index 2e82122..f897a9d 100644
--- a/static/src/app/services/pos_store_patch.js
+++ b/static/src/app/services/pos_store_patch.js
@@ -2,13 +2,15 @@
 
 import { PosStore } from "@point_of_sale/app/services/pos_store";
 import { patch } from "@web/core/utils/patch";
+import { toRaw } from "@odoo/owl";
 
 patch(PosStore.prototype, {
     clearProductsCache() {
-        this._productsToDisplayCacheKey = null;
-        this._productsToDisplayCache = null;
-        this._productToDisplayByCategCacheKey = null;
-        this._productToDisplayByCategCache = null;
+        const rawStore = toRaw(this);
+        rawStore._productsToDisplayCacheKey = null;
+        rawStore._productsToDisplayCache = null;
+        rawStore._productToDisplayByCategCacheKey = null;
+        rawStore._productToDisplayByCategCache = null;
     },
 
     async editProduct(product) {
@@ -22,8 +24,9 @@ patch(PosStore.prototype, {
         const templatesLength = this.models["product.template"].length;
         const cacheKey = `${searchWord}_${categoryId}_${templatesLength}`;
 
-        if (this._productsToDisplayCacheKey === cacheKey && this._productsToDisplayCache) {
-            return this._productsToDisplayCache;
+        const rawStore = toRaw(this);
+        if (rawStore._productsToDisplayCacheKey === cacheKey && rawStore._productsToDisplayCache) {
+            return rawStore._productsToDisplayCache;
         }
 
         // We override this getter to remove Odoo's hardcoded 100-product limit.
@@ -87,8 +90,8 @@ patch(PosStore.prototype, {
             result = this.orderProductBySequenceAndFav(filteredList);
         }
 
-        this._productsToDisplayCacheKey = cacheKey;
-        this._productsToDisplayCache = result;
+        rawStore._productsToDisplayCacheKey = cacheKey;
+        rawStore._productsToDisplayCache = result;
         return result;
     },
 
@@ -99,16 +102,17 @@ patch(PosStore.prototype, {
         const categoriesLength = this.models["pos.category"].length;
         const cacheKey = `${searchWord}_${categoryId}_${templatesLength}_${categoriesLength}`;
 
-        if (this._productToDisplayByCategCacheKey === cacheKey && this._productToDisplayByCategCache) {
-            return this._productToDisplayByCategCache;
+        const rawStore = toRaw(this);
+        if (rawStore._productToDisplayByCategCacheKey === cacheKey && rawStore._productToDisplayByCategCache) {
+            return rawStore._productToDisplayByCategCache;
         }
 
         // We override this getter to remove Odoo's hardcoded 100-product category limit.
         const sortedProducts = this.productsToDisplay;
         if (!this.config.iface_group_by_categ) {
             const result = sortedProducts.length ? [["0", sortedProducts]] : [];
-            this._productToDisplayByCategCacheKey = cacheKey;
-            this._productToDisplayByCategCache = result;
+            rawStore._productToDisplayByCategCacheKey = cacheKey;
+            rawStore._productToDisplayByCategCache = result;
             return result;
         }
 
@@ -154,8 +158,8 @@ patch(PosStore.prototype, {
             }
         }
 
-        this._productToDisplayByCategCacheKey = cacheKey;
-        this._productToDisplayByCategCache = results;
+        rawStore._productToDisplayByCategCacheKey = cacheKey;
+        rawStore._productToDisplayByCategCache = results;
         return results;
     }
 });