Which type of mortar and pestle is NOT typically used in pharmacies?

In pharmacy practice, mortar and pestle sets are essential tools used for grinding, mixing, and compounding medications. Each type has specific materials suited for various tasks, but typically, the mortar and pestle not commonly used in pharmacies is the plastic version.

Glass mortars are preferred for their non-porous surface, making them easy to clean and ideal for mixing liquids and dry powders without reacting with them. Porcelain mortars have a rougher surface, making them suitable for grinding solid substances because they provide better friction. Wedgewood mortars, often made of stoneware, are also used due to their excellent grinding capabilities and durability.

While plastic mortars may be lightweight and unbreakable, they are generally not favored in the pharmacy setting. This is primarily due to their potential for static build-up and difficulties in achieving a fine grind, which are essential when compounding medications. They may also absorb substances, leading to contamination and less effective mixing. Therefore, the use of plastic mortars is limited compared to the other types, which are more conducive to pharmacy compounding practices.