Gunstones Bakery produces one third of the nation 's hot cross buns . Around 30 tonnes of flour and 20 tonnes of fruit is used by bakery each day . The bakery has been in operation for more than 100 years, but it was only recently that they started to use a new technology called 3D printing which allows them to produce their bread with greater precision Bakery has been forced to open a new multi-million pound production line .
Gunstones Bakery produces one third of the nation 's hot cross buns . Around 30 tonnes of flour and 20 tonnes of fruit is used by bakery each day . Buns are produced for M & S which expects to sell 40 million this Easter . Bakery has been forced to open a new multi-million pound production line .