diff --git a/website_sale_aplicoop/controllers/website_sale.py b/website_sale_aplicoop/controllers/website_sale.py
index a8e64b1..fb78819 100644
--- a/website_sale_aplicoop/controllers/website_sale.py
+++ b/website_sale_aplicoop/controllers/website_sale.py
@@ -416,14 +416,21 @@ class AplicoopWebsiteSale(WebsiteSale):
 
         # Safety: Get UoM category name (use sudo for read-only display to avoid ACL issues)
         uom_category_name = ""
+        quantity_step = 1  # Default step for integer quantities
         if product.uom_id:
             uom = product.uom_id.sudo()
             if uom.category_id:
                 uom_category_name = uom.category_id.sudo().name or ""
+                # Use 0.1 step for weight-based products (kg, g, etc.)
+                # This allows fractional quantities for bulk products
+                category_name_lower = uom_category_name.lower()
+                if "weight" in category_name_lower or "kg" in category_name_lower:
+                    quantity_step = 0.1
 
         return {
             "display_price": price_safe,
             "safe_uom_category": uom_category_name,
+            "quantity_step": quantity_step,
         }
 
     def _compute_price_info(self, products, pricelist):
diff --git a/website_sale_aplicoop/views/website_templates.xml b/website_sale_aplicoop/views/website_templates.xml
index 49aa797..0273cf3 100644
--- a/website_sale_aplicoop/views/website_templates.xml
+++ b/website_sale_aplicoop/views/website_templates.xml
@@ -1225,6 +1225,10 @@
                             t-set="safe_uom_category"
                             t-value="product_display_info.get(product.id, {}).get('safe_uom_category', '')"
                         />
+                    <t
+                            t-set="quantity_step"
+                            t-value="product_display_info.get(product.id, {}).get('quantity_step', 1)"
+                        />
                     <t
                             t-set="order_id_safe"
                             t-value="group_order.id if group_order else ''"
@@ -1236,6 +1240,7 @@
                             t-attf-data-product-name="{{ product.name }}"
                             t-attf-data-product-price="{{ display_price }}"
                             t-attf-data-uom-category="{{ safe_uom_category }}"
+                            t-attf-data-quantity-step="{{ quantity_step }}"
                         >
                         <div class="qty-control">
                             <label
@@ -1259,9 +1264,9 @@
                                     t-attf-id="qty_{{ product.id }}"
                                     class="product-qty"
                                     name="quantity"
-                                    value="1"
-                                    min="1"
-                                    step="1"
+                                    t-attf-value="1"
+                                    t-attf-min="{{ quantity_step }}"
+                                    t-attf-step="{{ quantity_step }}"
                                 />
                             <button
                                     class="qty-increase"