Packaging specialist Long Life Solutions (LLS) has collaborated with Morrisons to introduce a bag to keep greens fresh, using the company’s patented Smart technology.

The packaging includes a logo with the words Smartbag - Keeps your Greens fresher for longer - as well as a link to the LLS website, which explains how the technology works.

The webpage says: “Smartbags allow their contents to survive longer in a natural and healthy packaging environment without altering that environment through the introduction of external commercial gases, chemicals, dips or other foreign substances.

“This will allow the customers to have improved food quality and reduce costs while alleviating consumer health and safety consumption issues. It will achieve this by continuing to develop packaging products that harness and enable nature’s own biometric and osmotic process to provide tasty, fresh and attractive produce.”

LLS managing director Andrew Wright said the move heralded a big step forward for the fresh produce industry, marking the first joined-up promotion with a retailer of its kind.

It is also another step in Morrisons' drive to make its packaging more environment-friendly.