Blackburn Market (Picture: LT) The Mall and Blackburn Market have revealed which stores and shops will be open during the new restrictions. Blackburn with Darwen as well as adjoining authorities moved into Tier 4 last week which now means all non-essential shops must close. The Mall said they had collated information from their retailers to clarify which essential services are open during the coming month. Shoppers are asked to check online at The Mall website for any updates. Presently the following food stores will be offering a takeaway service to customers: Greggs King William Street; Greggs Ainsworth Street; Costa Coffee; Hasty Tasty; Poundbakery; KFC; Krispy Kreme and Muffin Break.