To help shoppers who find the heightened sensory environment of a supermarket - the constant music, beeping scanners, bright lights - to be challenging, a low-sensory shopping experience designed to be easy on the eyes and ears will be offered from Tuesday.

For an hour each week, Coles will dim store lighting by 50 per cent, switch the radio off and reduce volumes of their registers and scanners to the lowest level.

"People on the autism spectrum often have difficulty processing sensory information and can find sounds, light, smell, touch and taste overwhelming," says Linzi Coyle from Aspect. Credit:Jim Rice

No trolley collections and roll cages will be removed from the shop floor throughout the hour, announcements will only be made in emergencies and additional staff will be available to support customers during the trial phase.

The national supermarket chain partnered with Autism Spectrum Australia (Aspect) in August to trial Quiet Hour at two Victorian stores to support customers who live with autism, or have family members who do.