Mooncakes are traditional Chinese pastries often containing egg yolks or meat as a filling. In general, they will be refused entry as an agricultural hazard when originating from countries with current outbreaks of avian flu (HPAI/H5N1), Exotic Newcastle Disease (END), or other livestock diseases.
If the Mooncakes were produced in Canada and the importer can prove they are unequivocally of Canadian-origin, there will be no import restriction.
If the inspecting CBP officer cannot confirm the absence of prohibited egg or meat fillings, the Mooncakes will be refused entry.
For updated information about importing food products, visit the website of the U.S. Department of Agriculture's (USDA) Animal and Plant Health Inspection Service (APHIS) (at that link, scroll down to Table A-1-9) or call (301) 851-3300 or email askNCIE.Products@aphis.usda.gov.