Sainsbury’s is trialling larger self-checkout tills as a replacement for human cashiers to boost store efficiency.

Rather than the familiar tills designed for a few items, or a basket of goods, the new style features a conveyor belt for customers.

This enables those with a trolley shop to be able to use self-checkouts rather than have a member of staff do the work instead.

In the middle, shoppers have to scan all the items themselves, and then they pack them on the other side.

The trials,…