According to the TSA’s (Transportation Security Administration) broadcasted decision on flights to/ from the US, powder-like substances (flour, sugar, coffee, spices, milk powder, etc.) equal to or over 350 milliliters are not allowed in carry-on belongings or cabin baggage. Powder-like products under a volume of 350 ml being subject to additional screening; if such products are not intended to be used during flight, passengers are kindly invited to carry them in their checked-in luggage.
• Powders in containers equal to or over 350 milliliters will not be allowed in the cabin and have to be checked in.
• Baby formula, prescription medicines and human remains are exempt provided that they are sealed.
• Powder-like substances purchased in airport duty free shops at last point of departure must be placed in Sealed Tamper Evident Bags along with proof of purchase.