Meissen porcelain further precaution, very few workers knew the special secret ("arcanum") of how to make porcelain, and then perhaps only part of the process. Thus, for a few years, Meissen retained its monopoly on the production of hard-paste porcelain in Europe. By 1717, however, a competing production was set up at Vienna, as Samuel Stöltzel sold the secret recipe, which involved the use of kaolin, also known as china clay. By 1760 about thirty porcelain manufacturers were operating in Europe, most of them, however, producing frit based soft-paste porcelain. In order to identify the original Meissen products, Meissen developed markings that
Rose Acre Farms nearby campus of Purdue University at Lafayette, Indiana. In April 2018, Rose Acre Farms announced that, due to concerns over "Salmonella", they would be voluntarily recalling more than 200 million eggs which originated at its facility in Hyde County, North Carolina. All recalled eggs were conventional eggs from hens raised in battery cage facilities. The Food and Drug Administration investigation found, among other things, numerous rodents in the manure pits below the battery cages. It was the largest egg recall in the country since 2010. Rose Acre Farms Rose Acre Farms is the second largest egg producer in the United