The journey home from vacation is always slightly discouraging, especially when you are going home to an empty pantry. But U.K. online grocery store Tesco has a possible solution.

The journey home from vacation is always slightly discouraging, especially when you are going home to an empty pantry. But U.K. online grocery store Tesco has a possible solution.

For the next two weeks, Tesco is running a trial of the U.K.'s first interactive virtual grocery store, located in the departure lounge of Gatwick Airport.

A refrigerator-esque machine offers a giant touch screen on which consumers can flip through pages of virtual shelves carrying an assortment of 80 products. To buy one, just scan the item's barcode with a smartphone, and your basket of goods will be delivered to your front door in time for your homecoming.

Ten virtual supermarkets have been placed around the London airport's departure lounge, ready for use by Android and iOS users. You can set your order delivery date for any time up to three weeks in advance.

"When we came up with the idea for the virtual store at Gatwick, we really wanted to provide a helpful service for busy families," Tesco.com senior marketing manager Mandy Minichiello said in a statement.

Tesco touted itself as the first retailer to offer a service of this kind, especially in the North Terminal of Gatwick, from which 30,000 people depart each day, with an average 70-minute wait between flights, the grocery company said.

Staff will be on hand during the trial period, through Aug. 19, to help customers scan and order food.

Tesco launched the world's first virtual store last year in South Korea. Commuters in subway stations and at bus stops could point their smartphones at billboards to purchase goods.

"Our business in Korea is teaching us a lot about how customers and technology are transforming shopping," Tesco's Internet retailing director, Ken Towle, said in a statement. "It gives us a unique window into the future and the chance to try out exciting new concepts."

Unfortunately, the machines still won't quell that nagging feeling that you left the oven on.

In the U.S., Whole Foods markets in February that used Microsoft Kinect motion sensor technology. After a user was identified by a loyalty card, the cart would then roll around the store on its own, guiding users to the items they wanted. It can also scan items and mark them off of a shopping list, before checking the customer out.