Mortars and Pestles

Tools used to grind and crush substances into fine powders or pastes, Mortars are bowl-shaped containers and pestles are heavy, rod-shaped tools. Commonly sold as sets but also available separately, mortar and pestle sets may include mortars, pestles, adapters, housings, or other items in several materials.

Mortar and pestle implements have been used since ancient times to crush and grind substances. Mortars can be made of hard materials like wood, metal, ceramic, or hard stone such as granite or marble. Pestles are held in the hand and usually have a tapered, club-like shape. A wet or dry substance is placed in the mortar and the pestle is pressed against it and rotated until the material is pulverized.

What Is the Best Material for a Mortar and Pestle?
The implements must be made of materials that are hard enough to crush the substance without wearing away, but they cannot be brittle or break from the pressure of manipulation. The material should also be cohesive to reduce chipping and non-porous to avoid absorbing or trapping substances. Some rough porcelain mortars and pestles can reduce substances to very fine powders, but are brittle and stain more easily. Porcelain mortars can be pre-conditioned by grinding sand in them to produce a rougher surface. Glass mortars and pestles are stain-resistant and suitable for liquids, but are fragile and do not grind as finely as ceramic sets. Metal mortars and pestles are popular for food preparation.

Mortars and pestles are commonly used to grind and mix substances for dilution, to mask negative qualities, or to add volume to facilitate handling. Drugs can also be finely ground when not available in liquid form, and supplements can be processed to for addition to parenteral nutrition.

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Electron Microscopy Sciences Dounce Tissue Grinder, 40 ml, 32 mmx 140 mm Mortor, 185 mm OAL

This grinderis ideal for soft tissue and will retain a high percentage of cell nuclei and mitochondria in soft tissues from cell cultures. When in use, the pestle ball is encircled in liquid, which avoids heat buildup by reducing friction. The initial grinding is performed using the "loose" pestle. The grinding process is completed using the "tight" pestle. This grinder is used by moving the pestle up and down, and work best with cell suspensions or very soft tissues. The mortar has a large reservoir and pouring lip and is supplied with "loose” and "tight” pestles. Made of Wheaton 33 low extractable borosilicate glass. Autoclavable.
Size: 40 ml
Mortor: 32 mmx 140 mm
OAL: 185 mm

Pricing & Availability

Electron Microscopy Sciences Potter-Elvehjem Tissue Grinder, 15 ml, 19 mm x 94 mm Mortor, 219 mm OAL

These grinder are precisely constructed with completely interchangeable parts to allow easier cleaning or replacement of damaged mortars. Ideal for tissue homogenates and other similar applications. The Teflon pestle is for soft tissues such as brain or liver. The stainless steel rod is 0.25" (6.3 mm) diameter. The grinding chamber clearance is 0.004" to 0.006' (0.1 to 0.15 mm). This unit is autoclavable and can be used for power homogenization as with overhead stirrer.
Size: 15 ml
Mortor: 19 mm x 94 mm
OAL: 219 mm

Pricing & Availability

Electron Microscopy Sciences Dounce Dura Grind Tissue Grinder, 15 ml, 35 mm x 114 mm Mortor, 171 mm OAL

Wheaton Dura-Grind Stainless Steel Dounce Tissue Grinder provides a rugged alternative to glass Dounce tissue grinders. Smooth pestle action requires less effort than glass tissue grinders. This unit is precision machined of No. 316 stainless steel to the tolerance of 0.0005 in. (0.013 mm). The mortar has flat bottom allowing it to stand upright. Single pestle and mortar are supplied as a matched set; they are NOT autoclavable. Weight 2 lb (0.9 kg)
Size: 15 ml
Mortor: 35 mm x 114 mm
OAL: 171 mm

Pricing & Availability

Electron Microscopy Sciences Potter-Elvehjem Tissue Grinder Mortar, 55 ml, 30 mmx 130 mm Mortor, 266 mm OAL

Replacement part to use in Potter-Elvehjem tissue grinder.
Size: 55 ml
Mortor: 30 mmx 130 mm
OAL: 266 mm

Pricing & Availability

Electron Microscopy Sciences Potter-Elvehjem Tissue Grinder Pestle, 10 ml, 16 mmx 74 mm Mortor, 219 mm OAL

Replacement part to use in Potter-Elvehjem tissue grinder.
Size: 10 ml
Mortor: 16 mmx 74 mm
OAL: 219 mm

Pricing & Availability

Electron Microscopy Sciences Potter-Elvehjem Tissue Grinder Pestle, 30 ml, 24 mmx 118 mm Mortor, 266 mm OAL

Replacement part to use in Potter-Elvehjem tissue grinder.
Size: 30 ml
Mortor: 24 mmx 118 mm
OAL: 266 mm

Pricing & Availability

Electron Microscopy Sciences Tapered Tissue Tapered Tissue Grinder Stainless Steel Rod Pestle, 5 ml, 13 mm x 93 mm Mortor, 220 mm OAL

This is new design grinder with longer tapered surface on both the mortar and pestle, offering grinding more efficient and less time require. The conical surface allows initial size reduction followed by passage through the cylindrical section for the final homogenization step. Made from Wheaton 33 low extractable borosilicate glass. Interchangeable components takes the hassle out of matching parts. Unit is autoclavable. When the pestle is "bottomed" within the mortar, the clearance is uniform 0.004" to 0.006” (0.1 to 0.15 mm). Teflon pestle with stainless steal rod firs power homogenizer. Homogenizes soft tissue such as brain. The stainless steel rod is 0.25” (6.3 mm) diameter and is suited for use with Wheaton Overhead Stirrer.
Size: 5 ml
Mortor: 13 mm x 93 mm
OAL: 220 mm

Pricing & Availability

Electron Microscopy Sciences Tapered Tissue Grinder, 15 ml, 18 mmx 114 mm Mortor, 240 mm OAL

This is new design grinder with longer tapered surface on both the mortar and pestle, offering grinding more efficient and less time require. The conical surface allows initial size reduction followed by passage through the cylindrical section for the final homogenization step. It is ideal for homogenization of connective tissue including heart, muscle and lung, as well as skin and plant tissue.

Made from Wheaton 33 low extractable borosilicate glass. Interchangeable components takes the hassle out of matching parts. Unit is autoclavable. When the pestle is "bottomed" within the mortar, the clearance is uniform 0.004" to 0.006” (0.1 to 0.15 mm).
Size: 15 ml
Mortor: 18 mmx 114 mm
OAL: 240 mm

Pricing & Availability

Electron Microscopy Sciences Potter-Elvehjem Tissue Grinder PTFE with Radial Serrations, 5 ml, 13 mmx 66 mm Mortor, 219 mm OAL

Potter-Elvehjem Tissue Grinder incorporates a serrated pestle design to disperse homogenate into the mortar cylinder. Standard unit with Teflon pestles are well suited for soft tissue, such as brain and liver.

The tissue grinder are precisely constructed with completely interchangeable parts to allow easier cleaning or replacement of damaged mortars. This unit is autoclavable and can be used for power homogenization as with overhead stirrer. Depth of the serration is 0.20" to 0.25" (0.1 to 0.15 mm).
Size: 5 ml
Mortor: 13 mmx 66 mm
OAL: 219 mm

Pricing & Availability

Electron Microscopy Sciences Tapered Tissue Grinder, 1 ml, 11 mm x 49 mm Mortor, 130 mm OAL

This is new design grinder with longer tapered surface on both the mortar and pestle, offering grinding more efficient and less time require. The conical surface allows initial size reduction followed by passage through the cylindrical section for the final homogenization step. It is ideal for homogenization of connective tissue including heart, muscle and lung, as well as skin and plant tissue.

Made from Wheaton 33 low extractable borosilicate glass. Interchangeable components takes the hassle out of matching parts. Unit is autoclavable. When the pestle is "bottomed" within the mortar, the clearance is uniform 0.004" to 0.006” (0.1 to 0.15 mm).
Size: 1 ml
Mortor: 11 mm x 49 mm
OAL: 130 mm