Aviation experts are warning about potential chaos at European airports this summer as liquid restrictions are set to be reintroduced. The European Commission has announced that from September 1 the 100ml liquid restriction will apply once again - meaning all liquids, gels, pastes and aerosols must be less than 100mkl and placed inside a clear plastic bag before you take them through airport security at any EU airport. It means holidaymakers travelling throughout Europe will no longer be able to carry any liquids measuring more than 100ml in their hand luggage.

The temporary restrictions will begin from September 1 in all EU airports - including those which have installed new-generation C3 scanning equipment for hand luggage. Europe’s branch of Airports Council International (ACI) has condemned this move, saying it will likely lead to significant delays at border screening - right in time for the summer holidays. “It will result in significant operational strain, the mitigation of which will require the deployment of additional staff and the reconfiguration of security checkpoints, where feasible,” a press release from the organisation read.

The U-turn follows on from many airports installing new C3 scanners at security gates, which in theory will allow for liquids over 100ml to be carried through on to the plane. However, this has now been reversed. Although the restriction is slated to be a temporary measure, there is no timeline on when it might be lifted, something .