It is unglazed pottery.

I hear that unglazed pottery helps wick out moisture, if that helps your product.

They often used unglazed pottery.

Mixing meat and milk in unglazed pottery can create a culture medium for typhoid-producing bacteria.

Some of the most popular forms of pottery include unglazed pottery, glazed pottery, terracotta, and papier-mache.

There are three types of unglazed pottery.

Be careful what you choose, though, since inadequately fired, unglazed pottery is risky to ship or pack.

Săcel is famous for its red, unglazed pottery obtained through ancient, dacian techniques that date back more than 2000 years ago.

Until these finds, the unglazed, low-fired pottery known as Colono ware was thought to be the work of American Indians.

After leaving school in 1927, she began decorating the brown, unglazed pottery produced by the factory.