Raw Sugar vs Refined Sugar: ICUMSA Ratings, Processing & Trade Differences

The distinction between raw sugar and refined sugar is fundamental to bulk sugar procurement — yet it's one of the most misunderstood divisions in international trade. These are not interchangeable products with cosmetic differences. They're separate categories with different ICUMSA ratings, different regulatory classifications, different pricing structures, and entirely different end markets. For buyers, getting this distinction right means sourcing the correct product for your application, paying the right price, and avoiding customs or compliance issues at the destination port.

This guide breaks down the raw vs refined sugar difference — how they're graded, how they're processed, how they're traded, and which type you should be buying.

Raw Sugar vs Refined Sugar — The Core Difference

Raw sugar is sugar that has been extracted from sugarcane and crystallized but has not undergone refining. It retains molasses, color compounds, and mineral impurities, giving it a brown appearance and ICUMSA ratings typically above 600. Refined sugar has been processed through additional purification stages to remove these impurities, resulting in white or off-white sugar with ICUMSA ratings between 45 and 150. Raw sugar is not food-safe without further refining; refined sugar meets food-grade standards and can be sold directly to consumers or food manufacturers.

For full context on how ICUMSA ratings define sugar quality across all grades, see our ICUMSA ratings guide.

How ICUMSA Ratings Define Raw vs Refined

The ICUMSA color rating is the most objective way to classify raw versus refined sugar. While there's no universally mandated cutoff, the practical dividing line in international trade sits around ICUMSA 400–600:

• Refined sugar: ICUMSA 45 to 150 (sometimes extending to 200 in regional markets)

• Semi-refined sugar: ICUMSA 200 to 400 (less common, market-specific)

• Raw sugar: ICUMSA 600 and above (typically 600 to 1800 for commercial grades)

This distinction matters beyond appearance. Many countries apply different import tariffs to raw versus refined sugar specifically to protect domestic refining industries. Customs authorities use ICUMSA ratings alongside other parameters (Pol%, ash content) to determine tariff classification. A sugar arriving at ICUMSA 200 might face different duties than one at ICUMSA 600, even if both are brown in color.

The unrefined sugar ICUMSA threshold is not arbitrary — it corresponds to the point at which sugar exits the mill before entering the refinery. Raw sugar is what mills produce and sell; refined sugar is what refineries produce and sell.

[IMAGE: Visual comparison showing raw sugar (brown, ICUMSA 1200) and refined sugar (white, ICUMSA 45) side by side in clear containers]

Raw Sugar vs Refined Sugar — Side-by-Side Comparison

Parameter	Raw Sugar	Refined Sugar
ICUMSA Range	600 to 1800+	45 to 150
Polarization (Pol%)	97.0–99.5%	99.0–99.8%
Appearance	Brown, with visible molasses	White to off-white
Processing Level	Crystallized, not refined	Fully refined
Food-Safe?	No (refinery input only)	Yes
Moisture	0.10–0.15%	0.04–0.06%
Ash Content	0.15–0.25%	0.04–0.07%
Typical Buyers	Refineries, ethanol plants	Food manufacturers, retailers, distributors
Price Position	Lower (less processing)	Higher (more processing)
Trade Benchmark	NY11 futures (commodity)	Regional markets (variable pricing)
Import Tariffs	Often lower (favors raw imports)	Often higher (protects domestic refineries)

This table reflects standard commercial grades. For a detailed breakdown of every grade from 45 to 4600, see the ICUMSA scale all grades reference.

Sugar Processing Stages — From Cane to Crystal

Understanding where raw and refined sugar diverge in the production process clarifies why they have different characteristics, pricing, and end markets.

Stage 1: Extraction and Juice Clarification

Sugar production begins at the mill, where harvested sugarcane is crushed to extract juice. The raw juice contains sucrose (12–15% concentration), water, fiber, minerals, organic acids, and color compounds. This juice is heated and treated with lime (calcium hydroxide) to precipitate impurities, then filtered to remove solids. The clarified juice is concentrated through evaporation to create a thick syrup with 60–70% sucrose content.

At this stage, the liquid is brown, acidic, and contains significant non-sucrose solids. Everything that happens next determines whether the final product exits as raw sugar or continues through to refined sugar.

Stage 2: Crystallization (Raw Sugar Output)

The concentrated syrup is transferred to vacuum pans — large vessels where controlled cooling and agitation cause sucrose to crystallize while other compounds remain dissolved in the syrup (called mother liquor or molasses). The mixture of crystals and molasses is spun in centrifuges to separate the solid sugar from the liquid.

The result is raw sugar: brown crystals coated in a thin film of molasses, with Pol typically 97–99.5% depending on the efficiency of centrifugation. This raw sugar has ICUMSA color ratings from 600 to 1800, contains residual minerals (ash), and is not food-safe by most regulatory standards.

This is the end of the process for sugar mills. The raw sugar is dried, bagged or stored in bulk, and sold to refineries or industrial buyers. VHP sugar (Very High Polarization) is a premium raw sugar grade produced at this stage with Pol 99.0–99.5% — for details on VHP specifications and market positioning, see VHP sugar explained.

Stage 3: Refining (Refined Sugar Output)

Refining takes raw sugar and removes the impurities that prevent it from being food-safe. The raw sugar is dissolved in water to create a syrup, then treated through one or more purification processes:

Carbonatation — adding lime and carbon dioxide to precipitate impurities as calcium carbonate, which is filtered out

Phosphatation — using phosphoric acid and lime to remove color and ash (alternative to carbonatation)

Decolorization — passing the syrup through activated carbon or ion exchange resins to remove color compounds

Crystallization and drying — the purified syrup is crystallized again, centrifuged, and dried to produce refined white sugar

The final output is ICUMSA 45 to 150 depending on how thoroughly the refining was executed. Moisture is lower (≤ 0.04–0.06%), ash is minimal (≤ 0.04–0.07%), and the sugar is bright white to off-white in appearance. This product is food-safe and meets regulatory standards for direct sale to consumers or food manufacturers.

Refining adds cost — capital equipment, energy, chemical inputs, labor, and yield loss (typically 2–4% of the raw sugar input is lost to molasses and waste streams). This is why refined sugar trades at a premium to raw sugar, and why countries with domestic refining capacity often protect those refineries through tariff structures.

Raw Sugar Grades Explained (ICUMSA 600–1200+)

ICUMSA 600–800 — Light Raw Sugar

Raw sugar in the ICUMSA 600–800 range is produced when mills achieve good juice clarification and efficient centrifugation. The color is lighter brown than standard raw sugar, and Pol is typically 97.5–98.5%. This grade is less common in international bulk trade and is primarily used by refineries that can achieve good yields from moderately pure feedstock.

Some regional markets use ICUMSA 600 as a semi-refined product for industrial food applications, though this is not standard practice in major import markets like the US, EU, or Gulf states.

ICUMSA 1200 — Standard Raw Sugar Benchmark

ICUMSA 1200 is the globally recognized benchmark for raw cane sugar. It has Pol ≥ 97.0%, color around 1200 IU, and is the standard specification referenced in commodity contracts and refinery purchasing agreements. This grade represents the output of efficient cane mills operating with standard processing technology.

ICUMSA 1200 is not food-safe. It's purchased by refineries as feedstock, by ethanol plants for fermentation, and by certain industrial buyers for non-food applications. The majority of international raw sugar trade — particularly from Brazil to Europe, Asia, and the Middle East — consists of ICUMSA 1200 or VHP grades.

VHP Sugar (ICUMSA 1200–1800, High Pol)

VHP (Very High Polarization) sugar occupies a unique position within raw sugar grades. Despite having brown color and ICUMSA ratings of 1200–1800, VHP has polarization of 99.0–99.5% — approaching the sucrose purity of refined grades. This makes VHP more valuable than standard raw sugar because refineries can process it with higher yields and lower costs.

VHP is the dominant raw sugar grade in global commodity markets and serves as the underlying commodity for NY11 sugar futures contracts. For a full breakdown of VHP specifications, pricing dynamics, and sourcing considerations, see our dedicated guide to VHP sugar explained.

Refined Sugar Grades Explained (ICUMSA 45–150)

ICUMSA 45 — Premium Refined White Sugar

ICUMSA 45 represents the highest standard of refinement commercially available. Color is ≤ 45 IU, Pol is ≥ 99.8%, and all impurity parameters are at the tightest tolerances. This is the grade required by pharmaceutical manufacturers, premium beverage producers, and retail sugar distributors in markets with strict food safety standards.

ICUMSA 45 is produced exclusively by refineries (not mills), primarily from VHP or ICUMSA 1200 raw sugar feedstock. Brazil is the world's largest exporter of ICUMSA 45, though Thailand, India, and EU beet sugar refineries also produce significant volumes.

ICUMSA 100–150 — Food-Grade Refined Tiers

ICUMSA 100 and ICUMSA 150 are refined sugars that meet food safety standards but do not achieve the absolute whiteness or maximum purity of ICUMSA 45. ICUMSA 100 has Pol ≥ 99.5% and color ≤ 100 IU; ICUMSA 150 has Pol ≥ 99.0% and color ≤ 150 IU.

These grades are widely used in industrial food manufacturing where absolute color consistency is not critical — bakeries, sauces, dry ingredient processors, and bulk food manufacturers. The cost savings versus ICUMSA 45 are meaningful at scale, and for most applications, the performance is identical.

Both ICUMSA 100 and ICUMSA 150 go through full refining (carbonatation or phosphatation, decolorization, crystallization) — they're not semi-refined products. The difference is the degree of decolorization achieved during refining, which affects the final color reading.

Trade Differences — How Raw and Refined Sugar Are Bought and Sold

Raw and refined sugar don't just differ in appearance and processing — they're traded in fundamentally different ways, with different pricing structures, contract terms, and regulatory considerations.

Import Duties and Tariff Classifications

Many countries apply different import tariffs to raw versus refined sugar. The policy rationale is straightforward: protect domestic refineries by making imported refined sugar more expensive than raw sugar that must be refined locally.

Examples of tariff differentials:

• United States — raw sugar enters under TRQ (Tariff Rate Quota) arrangements with preferential rates for certain origins; refined sugar faces higher over-quota tariffs and is subject to tighter import controls

• European Union — applies Common External Tariff with higher duties on refined sugar to protect EU beet sugar refineries

• India — import duties fluctuate based on domestic production, but refined sugar typically faces higher rates than raw when imports are permitted

• China — applies tariff quotas with raw sugar receiving more favorable treatment under WTO commitments

For importers, the tariff classification matters significantly. A sugar arriving as ICUMSA 150 (refined) might face double or triple the duty of the same sugar arriving as ICUMSA 600 (raw) — even if the buyer intended to use the raw sugar without further refining. Mis-classifying sugar at customs can trigger penalties, cargo holds, or re-export requirements.

Pricing Structures — Commodity vs Regional Markets

Raw sugar pricing is globally integrated and driven by commodity futures markets. The NY11 contract on ICE Futures is the pricing benchmark for raw sugar worldwide. Physical raw sugar contracts are typically structured as NY11 + premium/discount based on origin, quality, and delivery terms.

Refined sugar pricing is more fragmented. While commodity benchmarks exist (London No. 5 for white sugar), refined sugar trades more on regional supply-demand dynamics than on global commodity pricing. ICUMSA 45 in Brazil may trade at NY11 + $80–120/MT, while ICUMSA 45 in Thailand trades relative to Asian regional refined prices, and ICUMSA 45 in Europe reflects EU internal market conditions.

This means raw sugar buyers face more price transparency and tighter bid-ask spreads, while refined sugar buyers must navigate more opaque regional markets with greater price variation between suppliers.

Contract Terms and Documentation

Raw sugar contracts typically reference:

• NY11 futures month for pricing

• FOB origin port terms (Santos, Bangkok, etc.)

• ICUMSA 1200 or VHP specifications

• Pol% minimum (97.0% or 99.0% depending on grade)

• Independent SGS/Bureau Veritas inspection at load port

Refined sugar contracts typically reference:

• Fixed price or formula-based pricing (NY11 + fixed premium)

• CIF or CFR terms more common (buyer wants delivered price certainty)

• ICUMSA 45, 100, or 150 specifications

• Additional parameters beyond ICUMSA (SO2, heavy metals, microbiological for pharma/food)

• Certificate of Origin for tariff classification

The documentation burden is generally heavier for refined sugar because food safety regulations and customs classification require more detailed certificates.

Which Type Should You Buy?

When to Buy Raw Sugar

Raw sugar is the right choice when:

• You operate a refinery — raw sugar is your feedstock; VHP (Pol 99.0–99.5%) offers the best refining economics, standard ICUMSA 1200 (Pol 97.0%+) works if price is the priority

• You're producing ethanol or industrial fermentation products — sucrose content matters, color does not; raw sugar at commodity pricing beats refined sugar on cost per tonne of fermentable sugar

• Your destination market applies favorable tariffs to raw sugar — in markets where raw sugar enters at lower duty rates, importing raw and refining locally can be more economical than importing refined

• You're sourcing for non-food industrial applications — animal feed, agricultural products, certain chemical processes where food-grade certification is not required

When to Buy Refined Sugar

Refined sugar is the right choice when:

• You're supplying food or beverage manufacturers — food safety regulations require refined, food-grade sugar (ICUMSA 45–150 depending on application)

• You're importing for retail repackaging — consumer packaged sugar must meet refined white sugar standards in most markets

• You don't have access to refining capacity — if you need food-grade sugar and can't refine raw sugar locally, you must source refined

• Your destination market tariffs favor refined imports — some markets (typically those without domestic refineries) apply equal or near-equal tariffs to raw and refined, eliminating the raw sugar tariff advantage

• Your application requires pharmaceutical-grade specifications — these always demand refined ICUMSA 45 with additional quality controls

The decision often comes down to whether you have the capability to refine and whether the tariff structure in your destination market makes raw sugar economically attractive. For most food industry buyers, refined sugar is the only practical option. For refineries and industrial users, raw sugar delivers better economics.

For a comprehensive overview of all sugar types and their applications across industries, see our all sugar types guide.

Explore Raw and Refined Sugar Options

The raw versus refined distinction is more than a processing detail — it determines pricing, trade routes, regulatory compliance, and end-use applications. Understanding which category your procurement falls into, and why, is foundational knowledge for professional sugar buyers.

Visit our sugar products page to see the full range of raw and refined grades we supply, including VHP raw sugar, ICUMSA 1200, and refined ICUMSA 45. We handle FOB, CIF, and CFR contracts with full SGS inspection and documentation support.

Have specific volume, grade, or delivery requirements? Contact us to request a quote — we'll respond with pricing, available origins, and tariff guidance for your destination market within 24 hours.