Nisa is one of several retail groups recalling own-label pastry lines after its supplier warned that small pieces of metal wire may be an accidental ingredient.

Aldi and Tesco’s own label were also affected, as are any store selling certain Millers or Wall's branded fresh pastry products, all are manufactured by Addo Food Group.

The Wall's recall is likely to affect thousands of independent shops, as according to Adelie Foods marketing director John Want it is: “The number-one savoury pastry brand in the channel.”

A statement from the Food Standards Agency read: “Addo Food Group is recalling batches of chilled pastry products, including sausage rolls, pasties, pastry pies and slices because of potential contamination with small pieces of metal wire.”

According to Kim Burgess, head of markets at Addo Food Group, the chilled savoury pastry market for snacking and sharing is worth at least £65m to UK retailers.

The affected Nisa lines and use by dates are Heritage Beef Pasty (8 June), Heritage Chicken & Mushroom Pie (11 June), Heritage 2pk Cheese & Onion Rolls (7 & 10 June), Heritage Jumbo Sausage Rolls (7, 9 & 11 June), Heritage Minced Beef & Onion Pie (10 June), Heritage 2pk Sausage Rolls; (10 June), and Heritage Steak Pie (10 June).

The affected Millers lines and use by dates are Mince Beef & Onion slice (6, 7, 8, 9, 10, 11 & 12 June) and Chicken Tikka Slice (6, 7, 8, 9 ,10 ,11 & 12 June.)

The affected Walls lines and use by dates are:

Wall's Pasty 240g (6, 7, 8, 9, 10, 11 & 12 June),

Wall's Pasty 140g (6, 7, 8, 9, 10, 11 & 12 June),

Wall's Chicken & Bacon Slice 180g (6, 7, 8, 9, 10, 11 & 12 June),

Wall's Peppered Steak Slice 180g (6, 7, 8, 9, 10, 11 & 12 June),

Wall's Chicken Tikka Slice 180g (6, 7, 8, 9, 10, 11 & 12 June),

Wall's Chicken & Mushroom Slice 180g (6, 7, 8, 9, 10, 11 & 12 June),

Wall's Hickory pulled pork 180g (6, 7, 8, 9, 10, 11 & 12 June),

Wall's Ham & Cheese slice 180g (6, 7, 8, 9, 10, 11 & 12 June),

Wall's 4pk Steak slice (6, 7, 8, 9, 10, 11 & 12 June),

Walls 2pk Sausage & Bean Slice 210g (6, 7, 8, 9, 10, 11 & 12 June),

Wall's 2pk Chicken & Bacon Slice (6, 7, 8, 9, 10, 11 & 12 June),

Wall's 2pk Chicken Tikka Slice 210g (6, 7, 8, 9, 10, 11 & 12 June),

Wall's Jumbo Sausage Roll 150g (6, 7, 8, 9, 10, 11 & 12 June),

Wall's Breakfast Roll 150g (6, 7, 8, 9, 10, 11 & 12 June),

Wall's Cheese & Onion Roll; 130g (6, 7, 8, 9, 10, 11 & 12 June),

Wall's Cocktail Sausage rolls 200g (6, 7, 8, 9, 10, 11 & 12 June),

Wall's Chip shop pie Chicken & Mushroom 150g (6, 7, 8, 9, 10, 11 & 12 June),

Wall's Chip shop Pie Steak 150g (6, 7, 8, 9, 10, 11 & 12 June)

Wall's 4pk Sausage Roll (6, 7, 8, 9, 10, 11 & 12 June).

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