Plecker described Virginia's racial purity laws and requested to be put on Gross' mailing list.

These kinds of purity laws have gradually faded from explicit reference in modern Western Christianity.

For instance Germany required the production of beer to adhere to its purity law.

All the beers are made under the regulations of the German purity law, the Reinheitsgebot from 1516.

During Temple times, entry to the Mount was limited by a complex set of purity laws.

The beer is brewed in accordance with the German purity laws.

In many respects, this led to a more severe observance than that of the Pharisees especially as regards purity laws and temple practice.

He was known for his research on Biblical purity laws and considered the world's leading expert on Leviticus.

Nordhausen decreed the first purity law for Korn, and it is still produced there.