Coles has blinked in a tense stand-off with Campbell Arnott's, accepting price rises on dozens of products after the biscuit and soup maker held its Tims Tams hostage.

Campbell Arnott's told Coles in July it planned to lift prices in October by up to 10 per cent on a range of items, including Tim Tams, Scotch Fingers, and Monte Carlo biscuits, and some vegetable and meat stocks.

Arnott's cut supplies of Tim Tams to Coles in October. Credit:Natalie Boog

Coles said the increases were unjustified and refused to pay, prompting Arnott's to stop shipping Tim Tams and other products to Australia's second-largest supermarket chain's warehouses from early October.

"When a major international manufacturer decides they will unilaterally force through a price hike without justification, we will resist that," a Coles spokesman said.