Mortar and pestle

Mortars and pestles have been used in cooking since the Stone Age; today they are typically associated with the pharmacy profession due to their historical use in preparing medicines. They are used in chemistry settings for pulverizing small amounts of chemicals; in arts and cosmetics for pulverizing pigments, binders, and other substances; in ceramics for making grog; in masonry and other types of construction requiring pulverized materials. In cooking, they are typically used to crush spices, to make pesto, and certain cocktails such as the mojito, which requires the gentle crushing of sugar, ice, and mint leaves in the glass with a pestle.

The invention of mortars and pestles seems related to that of quern-stones, which use a similar principle of naturally indented, durable, hard stone bases and mallets of stone or wood to process food and plant materials, clay, or minerals by stamping, crushing, pulverizing and grinding.

A key advantage of the mortar is that it presents a deeper bowl for confining the material to be ground without the waste and spillage that occur with flat grinding stones. Another advantage is that the mortar can be made large enough for a person to stand upright and adjacent to it and use the combined strength of their upper body and the force of gravity for better stamping. Large mortars allow some individuals with several pestles to stamp the material faster and more efficiently. Working over a large mortar that a person can stand next to is physically easier and more ergonomic (by ensuring a better posture of the whole body) than for a small quern, where a person has to crouch and use the uncomfortable, repetitive motion of hand grinding by sliding.

Mortars and pestles predate modern blenders and grinders and can be described as having the function of small, mobile, hand-operated mills that do not require electricity or fuel to operate.

Large wooden mortars and wooden pestles would predate and lead to the invention of butter churns, as domestication of livestock and use of dairy (during the Neolithic) came well after the mortar and pestle. Butter would be churned from cream or milk in a wooden container with a long wooden stick, very like the use of wooden mortars and pestles.

History

Mortars and pestles were invented in the Stone Age when humans found that processing food and various other materials by grinding and crushing into smaller particles allowed for improved use and various advantages. Hard grains could be cooked and digested more easily if ground first, grinding potsherds into grog would vastly improve fired clay, and larger objects such as blocks of salt would be much easier to handle and use. Various stone mortars and pestles have been found, while wooden or clay ones would perish much more easily over time.

Scientists have found ancient mortars and pestles in Southwest Asia that date back to approximately 35000 BC.

Stone mortars and pestles have also been used by the Kebaran culture (the Levant with Sinai) from 22000 to 18000 BC to crush grains and other plant material. The Kebaran mortars that have been found are sculpted, slightly conical bowls of porous stone, and the pestles are made of a smoother type of stone.

Another Stone Age example is the rock mortars in the Raqefet Cave in Israel, which are natural cavities in the cave floors, used by Late Natufians around 10000 BC to grind cereals for brewing beer in the cavities. These rock mortars are large enough for a person to stand upright by them and crush the cereals inside the cavity with a long wooden pestle.

Ancient Africans, Sumerians, Egyptians, Thai, Laos People, Polynesians, Native Americans, Chinese, Indians, Greeks, Celts, and countless other people used mortars and pestles for processing materials and substances for cooking, arts, cosmetics, simple chemicals, ceramics and medicine.

Since the 14th century, bronze mortars became more popular than stone ones, especially for use in alchemy and early chemistry. Bronze mortars would become more elaborate than stone ones, had the advantage to be harder, and were easily cast with handles, knobs for handling, and spouts for easier pouring. However, the big disadvantage was that bronze would react with acids and other chemicals and corrode easily. Since the late 17th century, glazed porcelain mortars became very useful, since they would not be damaged by chemicals and would be easy to clean.

Etymology

The English word mortar derives from Middle English morter, from old French mortier, from classical Latin mortarium, meaning, among several other usages, "receptacle for pounding" and "product of grinding or pounding"; perhaps related to Sanskrit "mrnati" - to crush, to bruise.

The classical Latin pistillum, meaning "pounder", led to the English pestle. Stemming from the pistillum, the word pesto in Italian cuisine means created with the pestle.

The Roman poet Juvenal applied both mortarium and pistillum to articles used in the preparation of drugs, reflecting the early use of the mortar and pestle as a symbol of a pharmacist or apothecary.

Mortar as a synonym for cement in masonry came from the use of mortars and pestles to grind the materials for creating cement. The short bombard cannon was called "mortar" in French because the first versions of these cannons looked like big metal mortars of the Medieval Ages and they required to be filled with gunpowder, like a mortar would be full of powdered material.

The mortar and pestle in culture and symbols

The antiquity of the mortar and pestle is well documented in early writing, such as the Egyptian Ebers Papyrus of around 1550 BC (the oldest preserved piece of medical literature) and the Old Testament (Numbers 11:8 and Proverbs 27:22).

In Indian mythology, Samudra Manthan from Bhagavata Purana creates amrita, the nectar of immortality, by churning the ocean with a pestle.

Since medieval times, mortars would be placed or carved on the gravestones of pharmacists and doctors.

In Russian and Eastern European folklore, Baba Yaga is described and pictured as flying through the forest standing inside a large wooden mortar (stupa), holding the long wooden pestle in one hand to remove obstacles in front of her, and using the broom in her other hand to sweep and remove her traces behind her. This seems as a trace of some ancient rituals connecting the witch symbols of Baba Yaga with the use of mortars in alchemy, pharmacy, and early chemistry, which were all seen as magic by uneducated people in the Medieval Ages.

In various Asian mythologies and folklores, there is a common theme of a Moon rabbit, making use of a mortar and pestle to process the ingredients for the Elixir of life (or rice for making mochi).

Modern pharmacies, especially in Germany, still use mortars and pestles as logos.