After a bumper March quarter fuelled by panic hoarding, sales growth at Coles and Woolworths is expected to remain elevated for more than a year as consumers eat more at home.

Analysts say the coronavirus pandemic is likely to have a long-lasting impact on consumer shopping patterns. Even when pantry stuffing eases and stage-3 restrictions are lifted, cautious consumers are likely to cook more at home, order more online and keep their pantries better stocked.