As per the U.S Department of Homeland Security (DHS), effective 30 June 2018, passengers traveling on flights bound for the United States may be subjected to additional security measures to prohibit powder-based substances greater than 12oz/350ml in carry-on baggage. Powder substance that is in excess of the allowed amount will not be allowed in the cabin of the aircraft.
Examples of powders subject to the 12oz/350 ml carry-on restriction include:
Ground coffee or tea
Cosmetics (in powder form)
Exempted items that must be identified, screened and resolved include:
Medically necessary powders (including protein powder)
Powders purchased after the security checkpoint, such as bagged coffee purchased at duty-free shops, are exempted only if they are placed in security tamper evident bags. Otherwise, the powder will have to be gate checked or abandoned.
FCM recommends all customers who are travelling to the United States to place any items that resemble powders in checked baggage to avoid any disruption to your travel.
Click here for more of the TSA policy.