The Complete Guide to Shea Butter

What shea butter is

Shea butter is the fat pressed from the kernels of the wild shea tree, Vitellaria paradoxa, and is defined by a high stearic–oleic content and an unsaponifiable fraction of typically 4–11 %. Two subspecies are recognised: paradoxa (West Africa) and nilotica (Uganda, South Sudan, Ethiopia). Trees take 15–20 years to fruit and remain productive for a century or more; fruit ripens in the rainy season.

The shea belt is a savanna band several thousand kilometres long from Senegal to Uganda and Ethiopia. A ranked summary of the largest producers is in shea-producing regions of West Africa. Collection is done by women from protected parkland trees, not plantations. Supply is therefore seasonal and dispersed, and quality is largely set at collection — delay or damp storage raises free fatty acid before anyone presses a kernel.

Nilotica butter is typically softer, higher in oleic acid and lower in melting point than West African paradoxa butter. The unsaponifiable fraction — triterpene alcohols and their cinnamic esters, karitene, tocopherols — is why formulators specify shea rather than a cheaper hard fat. See unsaponifiable matter.

How shea butter is produced

From fruit to kernel the sequence is common: collection, de-pulping, parboiling or boiling, sun-drying, de-husking, sorting and storage. Damp or delayed kernels hydrolyse; that is why free fatty acid is a raw-material parameter, not a press setting.

Traditional production crushes and roasts the kernel, mills it to a paste, kneads with water, skims the emulsion and boils to clarify. Yields and quality vary with skill and weather. Mechanical (cold-pressed) production cleans, conditions at low temperature, expeller-presses and filters. "Cold-pressed" means no heat is added at the press — not that the kernel was never warmed. Conditioning method affects how a lot is classified.

Pressing and filtration cannot lower the free fatty acid of shea butter; only neutralisation or physical refining removes it — which is why kernel handling before extraction decides the grade. Solvent extraction (hexane) exists industrially; EMI Agro does not use it.

Refining to N-RBD is neutralisation, bleaching and deodorisation, optionally followed by fractionation into stearin (for cocoa butter equivalents) and olein. The by-product of pressing is shea press cake. EMI Agro's own sequence is on the About process section.

Grades and quality

Grade A unrefined shea butter has the lowest free fatty acid and peroxide value; the grade is set by kernel handling before pressing, not by processing afterwards. Colour is not a grade. Odour is not a grade. "Organic" is a certification, not a grade. Adulteration with other fats, water or starch occurs in the trade — identity parameters (saponification value, refractive index, iodine value) are the first check.

Specifications explained

A shea butter specification is read through nine parameters — FFA, peroxide value, moisture, refractive index, saponification value, unsaponifiable matter, melting point, colour and iodine value — each measured by an AOCS or ISO method. Buyers specify numbers, not adjectives. Every shipment should carry a Certificate of Analysis.

Uses and applications

Unrefined Grade A is specified for cosmetics, soap, lip balm, hair care and body butter — anywhere the natural colour, odour and unsaponifiable fraction are part of the product. Refined N-RBD is specified for food manufacturing, chocolate (cocoa butter equivalent), pharmaceutical excipients and cosmetic bases that must be white and odourless. Shea press cake is a feed, soap and soil input, not a butter. Who buys each grade — brands, contract manufacturers, distributors, soap makers, food and pharmaceutical buyers — is on shea butter by industry. Specification tables for each use sit on the application pages below.

Sourcing responsibly

Wild collection by women's cooperatives is the supply model across the belt. EMI Agro buys kernels from a cooperative network of more than 5,000 women and processes them in Ibadan. Intake lots are batch-coded. Details of the factory and the cooperative model are on the About sourcing section.

Buying and importing

Bulk shea butter from Nigeria moves under HS 1515.90. A serious enquiry states grade, volume, destination port and the application. The documents that travel with a shipment start with a Certificate of Analysis; certificate of origin, packing list and the commercial set follow. Import duties, labelling and any destination certificates are confirmed on the order against the buyer's port — start with the export overview and the country import guides. Commercial questions by market sit on the supplier hub. Send grade, volume, destination and application on the quote form — we reply with a quote basis and a current COA.