UK-based trade unions GMB and Unite have slammed Nestlé for proposing 300 job losses as it moves production of its Blue Riband chocolate biscuit to Poland.

The unions have also warned that this could be the ‘tip of the Brexit iceberg’ as companies use leaving the EU as an excuse to slash jobs and trample on workers’ rights.

A statement from GMB claimed that Blue Riband has been made in Britain since 1936 and is primarily consumed by the UK market – meaning it will have to be exported back into this country if production moves to Eastern Europe.

Tim Roache, GMB’s general secretary, said: “To shift the production of an iconic British brand like Blue Riband to Poland is completely unacceptable. Nestlé are throwing people’s lives, and those of their families, into turmoil for the sake of increasing profit margins. These factories should be exporting chocolate – not people’s jobs. The government needs to step in before it’s too late – and reassure millions of workers across the country this is not just the tip of the Brexit iceberg.”