Classification
Product TypeIngredient
Product FormRefined liquid (food/pharma grade)
Industry PositionFood additive ingredient (humectant/solvent/thickener)
Market
Glycerol (glycerine; INS 422) is used in South Africa primarily as a food additive/ingredient (humectant and thickener) and as an excipient-grade ingredient for pharmaceutical and personal-care manufacturing. South Africa has domestic refined glycerine production capacity (including BP/EP/USP grades) alongside ongoing reliance on traded supply for certain specifications and volumes. For food uses, South African regulations for miscellaneous additives link market access to Codex Alimentarius identity/purity specifications and Codex GSFA provisions for permitted additives. A key commercial focus is consistent food/pharma-grade quality assurance (including screening for toxic adulterants such as diethylene glycol/ethylene glycol).
Market RoleDomestic producer and importer (mixed supply market)
Domestic RoleIndustrial ingredient used by food, pharmaceutical, and personal-care manufacturers; domestically refined glycerine available
Market Growth
SeasonalityYear-round availability; not agriculturally seasonal, with supply shaped by refining output and import logistics.
Specification
Physical Attributes- Clear, colourless, hygroscopic, syrupy liquid
- Miscible with water and ethanol; immiscible with ether
- High-purity refined glycerine can solidify/crystallize around +18°C, affecting pumpability in cooler conditions
Compositional Metrics- JECFA assay: not less than 99% glycerol on an anhydrous basis
- JECFA water: not more than 5% (Karl Fischer method)
- JECFA sulfated ash: not more than 0.01%
Grades- Codex/JECFA food additive grade (INS 422) for food uses
- Pharmaceutical excipient grades: BP, EP, USP (as marketed by South African producer)
Packaging- Bulk supply (e.g., bulk tanker/ISO tank depending on route and supplier)
- UN-approved food-grade HDPE drums (e.g., 250 kg, 30 kg) as marketed by South African producer
Supply Chain
Value Chain- Crude glycerol (from fat/oil processing, soap, or biodiesel chains) → refining/purification to food/pharma-grade → packaging (bulk/drums) → domestic distribution to manufacturers
- Imported refined glycerol (HS 2905.45) → customs clearance → storage/warehousing → distribution to food/pharma/cosmetic manufacturers
Temperature- High-purity glycerine can crystallize/solidify near +18°C; cold conditions can require heating controls for bulk handling and pumping
Shelf Life- Hygroscopic material; protect from moisture ingress and contamination during storage and transfers
Freight IntensityMedium
Transport ModeSea
Risks
Food Safety HighDEG/EG adulteration or contamination of glycerol is a severe integrity hazard that can trigger product rejection, recalls, and serious human harm; importers using glycerol for food/pharma-adjacent applications face heightened reputational and compliance exposure if incoming lots are not tested to appropriate specifications.Require supplier qualification and batch COAs; implement incoming-lot testing for DEG/EG using validated methods; purchase only food/pharma-grade glycerol with traceable chain-of-custody and audit rights.
Regulatory Compliance MediumFor food additive use in South Africa, miscellaneous additive rules link market access to Codex GSFA listing and Codex/JECFA identity and purity specifications; non-conforming product or incomplete technical files can lead to detention, relabelling, or rejection.Map intended food uses to Codex GSFA provisions; maintain a compliance dossier (specification, COA, GMP statement, and traceability records) aligned to Department of Health requirements.
Logistics MediumBulk liquid logistics and temperature-related crystallization risk (near +18°C for high-purity glycerine) can cause pumping/transfer delays, demurrage, and quality incidents if storage and handling controls are weak, particularly for sea-freight routes into Durban.Specify temperature/handling conditions in contracts; use heated storage/transfer where needed; plan buffer stocks and confirm port/warehouse capabilities for bulk liquids.
Sustainability- Upstream feedstock traceability (vegetable vs animal origin) can be commercially important for vegan/halal positioning and sustainability claims; some South African producers market vegetable-origin glycerine.
- Potential land-use/deforestation exposure in global vegetable-oil supply chains (e.g., palm/soy) can influence buyer sustainability screening for glycerol-derived inputs.
Labor & Social- Occupational health and safety management in chemical refining and bulk liquid handling environments
- GMP-aligned training and quality culture expectations in food/pharma ingredient operations
Standards- ISO 22000:2018
- ISO 9001:2015
FAQ
Is glycerol (glycerine) permitted for use as a food additive in South Africa?South African food additive rules for “miscellaneous additives” link permitted use to the Codex General Standard for Food Additives (GSFA) and require additives to conform to Codex identity and purity specifications. Glycerol (INS 422) appears in Codex GSFA Online and is recognized with functional classes such as humectant and thickener.
What is the most critical quality/safety risk when sourcing glycerol for food or excipient-adjacent applications?The most severe integrity risk is contamination or adulteration with diethylene glycol (DEG) or ethylene glycol (EG), which has been associated with fatal poisonings in products made with contaminated glycerin components. A practical control is to qualify suppliers and test incoming lots for DEG/EG using validated methods, alongside standard food/pharma-grade specifications.
What purity benchmarks are commonly used for food-grade glycerol specifications?JECFA specifications for glycerol include an assay of not less than 99% on an anhydrous basis and limits for water and sulfated ash, providing an internationally recognized purity reference for food additive applications.
Is there domestic refined glycerine production in South Africa, and where is it located?Yes. A domestic producer (Organic Chemical Corporation) reports that it manufactures refined glycerine in Durban, South Africa, and provides BP/EP/USP grades; its contact details list a KwaZulu-Natal address in the Durban/Pinetown area.