A porcelain Hirsch funnel is a laboratory tool used for the filtration of liquids and suspensions. It consists of a porcelain funnel with a perforated plate at the bottom and a stem that allows it to be attached to a flask or filter paper. The perforated plate is designed to provide a larger filtration surface area compared to traditional funnels, allowing for faster and more efficient filtration.

Porcelain is a common material for Hirsch funnels due to its high resistance to chemical corrosion and its ability to withstand high temperatures. Hirsch funnels are commonly used in chemistry, pharmaceuticals, and other laboratory applications where filtration of liquids and suspensions is required.

They provide a cost-effective and convenient solution for filtration in laboratory settings.