Will products that have already been sent to the EU using old labels be legal to put on sale?

If the goods have reached the EU before the end of the transition period and meet the relevant definition, they are considered to have been ‘placed on the market’ and can continue to be sold. Food of non-animal origin placed on either the UK or EU27 market before the end of the transition period may continue to be sold on either or both of these markets until the stocks of the food are exhausted.