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A new oeufs de France logo showing a map of France with eggs inside it will be launched in September.

It will guarantee the eggs are from hens born and raised in France and that the eggs are laid and packed here. It comes after the scandal last year of certain imported eggs being found to have been contaminated with a pesticide, fipronil.

French egg producers also recently pledged to make sure at least one in every two laying hens in France is not kept in battery conditions by 2022. This follows pledges from supermarkets, which in turn were under pressure from rights groups such as L214.

Sixty-eight per cent of laying hens are still kept in cages.