The retailer is to take the extra measures after striking an agreement with the Government of Jersey.
The agreement has been signed by External Relations Minister Ian Gorst and the chief executive of the Co-op, Colin Macleod.
Senator Gorst said: ‘I am delighted with the support offered by the Channel Island Co-operative Society to provide increased resilience to the island’s supplies in advance of Brexit.
‘We’ve supported the work of the Chamber of Commerce to encourage Islanders to sensibly prepare by considering what items they might need in the event of supply-chain disruption.
‘Now, thanks to the good work of the Co-op, we are increasingly confident that there will be sufficient food and essential goods stored in Jersey, so that Islanders should not feel the need to overstock at home.’
Mr Macleod added: ‘The Channel Islands Co-operative Society, as Jersey’s leading community retailer, are acutely aware of the impact that disruption to the island’s supply chain could have, especially on those most vulnerable, including elderly islanders and families with young children.
‘I am proud that we have been able to provide support to the Government as Jersey negotiates the complexities of Brexit, and I hope that the sensible precautions we have taken will ensure islanders do not experience a significant impact in the event of a no deal exit.’
