Countdown's produce department is going plastic-free, starting with a 10-week trial.

As of February 14, three Countdown stores in Manukau, Ponsonby and Orewa will begin the plastic-free experiment.

Some product lines, such as plastic-wrapped corn, will be eliminated completely. Sixty-eight percent of others will be left loose or packaged with paper.

"So bags of potatoes, the grapes, the apples, cherry tomatoes, none of that will be in plastic anymore, we're going unwrapped," Countdown's Kiri Hannifin told Newshub.