[2][3] One of the first commercially prepared mayonnaise brands in the United States,[2] it was produced in Gretna, Louisiana, until 1941 when production was moved to the Blue Plate Building in Gert Town, New Orleans.

Reily Foods purchased Blue Plate in 1974 and continued to use the same factory until production was moved in 2000 to the Reily Foods factory in Knoxville, Tennessee.

The Blue Plate Building has since been converted into the Blue Plate Artist Lofts and is listed on the National Register of Historic Places.

Internally, Blue Plate and its advertising agency, Tilt, unofficially refer their mayo as "the official mayonnaise of the po' boy.

"[4] In 2018, Epicurious listed Blue Plate as "the best mayonnaise you can buy in a grocery store.