A trial which allows shoppers to buy things like fruit and vegetables without packaging is being extended by Waitrose.
Around 200 products have been removed from packaging in Oxford's Botley Road store.
The so-called ‘unpacked test’ was due to end on August 18 but will now continue.
The trial is also being rolled out to stores in Cheltenham, Abingdon and Wallingford.
Items removed from packaging include cut flowers, beer, lentils, couscous, seeds and a frozen fruit pick and mix selection
The retailer says the trial has received an 'overwhelmingly positive response'.
A spokesperson said: "While the original 11-week test has not finished, the findings so far give the supermarket confidence that the concept can be a success elsewhere.
"The test, now into its ninth week, set out to get as much feedback as possible and more than 7,000 customers have provided comments."