Which feature is NOT currently available in commercial smart refrigerators sold to consumers?

The Internet of Things (IoT) is transforming the food retail industry in fascinating ways. Smart kitchen appliances are changing how consumers shop for groceries, manage their food inventory, and reduce waste. These connected devices can track expiration dates, suggest recipes based on available ingredients, and even automatically reorder staples when supplies run low. How much do you know about this cutting-edge intersection of food retail and technology?

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Automatic grocery reordering when items run low
Internal cameras that let you view contents remotely via smartphone
Automatic detection of food spoilage through odor sensors
Recipe suggestions based on ingredients currently in the refrigerator