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"The Complete Guide to Spice Color Measurement"

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"How Color Signifies Freshness in Canned Tomato Paste"

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"How Color Signifies Freshness in Canned Tomato Paste"

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"The Complete Guide to Spice Color Measurement"

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"ASTA Color and IC Color of Paprika and Oleoresin Spices"

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"Do you have a source for color standards related to fruits and vegetables?"

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"What Is the Best Way to Measure the Color of Vegetable Oil?"

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The Complete Guide to Spice Color Measurement

Posted on Feb 06, 2026 by HunterLab

Las especias aportan sabor culinario y atractivo visual, y su color influye significativamente en la percepción del sabor, la calidad y la frescura. Las alteraciones en el aspecto pueden identificar procesos que requieren cambios para mantener la calidad del color. La medición precisa del color de las especias proporciona datos cuantificables para confirmar si estas cumplen con las tolerancias aceptadas por la industria, los estándares de calidad y las expectativas de los clientes.

El valor del análisis preciso del color de las especias

Hay varias razones de peso para medir el color de las especias:

  • Control de calidad: Los consumidores juzgan la calidad de los alimentos por su color, y el alto contenido de humedad, las fluctuaciones de temperatura durante el almacenamiento y la antigüedad de las especias influyen significativamente en su aspecto. La cuantificación y el control de la calidad del color de las especias contribuyen a obtener productos finales de mayor calidad.
  • Impacto comercial: Las personas también esperan que ciertos colores de las especias realcen el atractivo visual de los alimentos. Ofrecer siempre el color deseado fomenta la lealtad a la marca y puede crear entusiastas de la marca para toda la vida.
  • Conformidad con las normas: Algunas especias, como el pimentón y las especias oleorresinosas, deben cumplir normas industriales específicas. Otras especias utilizan diferentes espacios de color reconocidos por la industria, como Hunter L, a, b. Las mediciones precisas documentan la conformidad con los marcos normativos.

Integración de mediciones en todo el proceso de fabricación

La realización de múltiples mediciones permite a los fabricantes supervisar la calidad del color en puntos críticos de la producción, lo que simplifica la identificación de problemas y facilita su resolución temprana para reducir los residuos. La cuantificación de los datos en diversas etapas también permite determinar con precisión dónde se producen las alteraciones del color, lo que permite realizar ajustes de forma proactiva. Considere la posibilidad de implementar la medición del color en toda la producción, desde las inspecciones de las materias primas hasta la captura de datos de color durante el proceso y la verificación del producto acabado.

Consideraciones de muestra para fabricantes de especias

Las especias plantean retos únicos en cuanto a la medición del color, entre los que se incluyen:

Tamaño de la muestra frente a coste

El tamaño de la muestra puede no ser relevante para quienes trabajan con especias de bajo coste, como la pimienta negra, pero cuantificar el color en especias de alto coste, como el azafrán, supone un gasto más significativo. Los fabricantes de estas especias más costosas se benefician de minimizar la cantidad de muestra necesaria. Una solución de medición del color altamente precisa y exacta aporta una mayor confianza en los resultados, incluso con muestras más pequeñas. La herramienta adecuada también significa menos desperdicio de ingredientes valiosos, por lo que se destina más a las estanterías de las tiendas y a sus resultados finales.

Materiales no uniformes

Las especias son naturalmente heterogéneas, ya que contienen diversas texturas, tamaños y formas procedentes de las partes procesadas de las plantas. Las mezclas como la sal sazonadora o el curry en polvo aumentan aún más la complejidad al combinar diferentes ingredientes especiados. Estas variaciones hacen que las comparaciones visuales sean poco fiables y que la captura de datos precisos resulte difícil sin la tecnología adecuada.

Posted in Food

How Color Signifies Freshness in Canned Tomato Paste

Posted on Feb 05, 2026 by HunterLab

The desired red color of canned tomato paste comes from a mature tomato fruit with a sweet flavor and high concentration of lycopene. The United States Department of Agriculture (USDA) uses the tomato paste score (TPS) to grade the product and ensure it meets quality and consumer expectations.

Color and appearance matter because they are the first purchasing factors customers consider. When customers cook with tomato paste, they have certain expectations tomato paste manufacturers must meet to indicate the product's freshness.

What Color Should Tomato Paste Be? 

Consumers expect tomato paste from fresh tomatoes to be red or deep red. When the USDA first established tomato paste color classifications, ratings relied on visual assessments.

The USDA has three color classifications for tomato paste:

  1. Grade A: The tomato paste is a “good color” of a bright red and scores 45 to 50 points.
  2. Grade C: The tomato paste has a “fairly good color,” generally red with a dull or brown cast, and scores 40 to 44 points.
  3. Substandard: The tomato paste fails to meet Grade C standards and scores 0 to 39 points.

What Causes Color Changes in Tomato Paste?

Various factors may lead to browning or other color changes, including:

  • Oxidation: Tomato paste may be exposed to the air during canning due to improper sealing, which leads to discoloration.
  • High temperatures: Tomato paste may lose pigments due to excessive heat during canning or storage.
  • pH levels: Tomato paste may turn yellow as it ages if the acidity is too high.
  • Light exposure: Tomato paste may lose color over time due to UV light exposure.

Posted in Food

How Color Signifies Freshness in Canned Tomato Paste

Posted on Feb 05, 2026 by HunterLab

The desired red color of canned tomato paste comes from a mature tomato fruit with a sweet flavor and high concentration of lycopene. The United States Department of Agriculture (USDA) uses the tomato paste score (TPS) to grade the product and ensure it meets quality and consumer expectations.

Color and appearance matter because they are the first purchasing factors customers consider. When customers cook with tomato paste, they have certain expectations tomato paste manufacturers must meet to indicate the product's freshness.

What Color Should Tomato Paste Be? 

Consumers expect tomato paste from fresh tomatoes to be red or deep red. When the USDA first established tomato paste color classifications, ratings relied on visual assessments.

The USDA has three color classifications for tomato paste:

  1. Grade A: The tomato paste is a “good color” of a bright red and scores 45 to 50 points.
  2. Grade C: The tomato paste has a “fairly good color,” generally red with a dull or brown cast, and scores 40 to 44 points.
  3. Substandard: The tomato paste fails to meet Grade C standards and scores 0 to 39 points.

What Causes Color Changes in Tomato Paste?

Various factors may lead to browning or other color changes, including:

  • Oxidation: Tomato paste may be exposed to the air during canning due to improper sealing, which leads to discoloration.
  • High temperatures: Tomato paste may lose pigments due to excessive heat during canning or storage.
  • pH levels: Tomato paste may turn yellow as it ages if the acidity is too high.
  • Light exposure: Tomato paste may lose color over time due to UV light exposure.

Posted in Food

The Complete Guide to Spice Color Measurement

Posted on Feb 04, 2026 by HunterLab

Spices provide culinary flavor and visual appeal, and their color significantly influences perceptions of taste, quality, and freshness. Appearance alterations can identify processes that require changes to uphold color quality. Accurate spice color measurement provides quantifiable data to confirm whether spices meet accepted industry tolerances, quality standards, and customer expectations.

The Value of Accurate Spice Color Analysis

Several compelling reasons to measure spice color are:

  • Quality control: Consumers judge food quality by color, and high moisture content, temperature fluctuations during storage, and spice age significantly impact appearance. Quantifying and monitoring the color quality of spices supports higher-quality end products.
  • Business impact: People also expect certain spice colors to enhance food's visual appeal. Consistently delivering the desired color fosters brand loyalty and can create lifelong brand enthusiasts.
  • Conformance with standards: Some spices, such as paprika and oleoresin spices, have specific industry standards they may follow. Other spices use different industry-recognized color spaces, like Hunter L, a, b. Accurate measurements document conformance with frameworks.

Integrating Measurements Throughout Manufacturing

Taking multiple measurements allows manufacturers to monitor the color quality at critical production points, simplifying issue identification and empowering early resolution to reduce waste. Quantifying data at various stages also pinpoints where color alterations occur so you can proactively adjust. Consider implementing color measurement across production, from raw material inspections to in-process color data capture and finished product verification.

Sample Considerations for Spice Manufacturers

Spices come with unique color measurement challenges, including:

Sample Size vs. Cost

Sample size may not concern those working with low-cost spices like black pepper, but quantifying color in high-cost spices like saffron represents a more significant expense. Manufacturers of these more costly spices benefit from minimizing the sample amount required. A highly precise and accurate color measurement solution supports greater confidence in outcomes, even with smaller samples. The right tool also means less waste of valuable ingredients, so more goes toward retail shelves and your bottom line.

Nonuniform Materials

Spices are naturally nonuniform, containing various textures, sizes, and shapes from their processed plant parts. Blends like seasoning salt or curry powder further increase complexity with a mix of different spice ingredients. These variations make visual comparisons unreliable and accurate data capture challenging without the right technology.

Posted in Food

ASTA Color and IC Color of Paprika and Oleoresin Spices

Posted on Feb 04, 2026 by HunterLab

Color is a critical quality component for spices like paprika. The American Spice Trade Association (ASTA) has sampling and measurement standards for paprika, and a spectrophotometer from HunterLab effectively quantifies paprika color values for quality assurance.

How Paprika and Oleoresin Spices Are Made

Paprika is obtained from the ripened, ground, and dried fruit pods of the Capsicum annuum species. The Capsicum annuum peppers used for paprika are sweet and mild with little to no capsaicin, which is a heat compound.

The Capsicum annuum plant is grown until its peppers are mature and have ripened to a red color. The fully ripened peppers are picked for paprika to give the spice its signature red color. The pepper seeds are removed, and the fruit pods are dried in the sun or specially constructed dryers. After drying, producers grind peppers into powder.

Oleoresin paprika — or paprika extract — is the oil-soluble extract obtained by extracting lipids and pigments from Capsicum annuum Linn or Capsicum frutescens fruits. The oleoresin comprises capsaicin, capsanthin, and capsorubin, giving the product a strong taste and odor. Oleoresin paprika is a natural dye that colors foods a deep red color.

Posted in Food

Do you have a source for color standards related to fruits and vegetables?

Posted on Feb 03, 2026 by HunterLab

USDA/AMS is the most general source for visual color standards for fruits and vegetables and offers a catalogue of color comparators and equipment they have available.

USDA Equipment Catalog for Fresh and Processed Products Inspections is available on the internet USDA fruit and vegetable color standards document and provided through:

Processed Products Branch

Fruit and Vegetable Division, AMS

U.S. Department of Agriculture

P.O. Box 96456, Rm. 0709, So. Bldg.

Washington, D.C. 20090-6456

www.ams.usda.gov

USDA Visual Color Standards and other equipment related to fruits and vegetables can be ordered from:

Equipment & Forms Depot

USDA, AMS, FVP, SCI

831 Mitten Road, Room 200

Burlingame, CA 94010 USA

+650-552-9073

FVSupplyDepot@ams.usda.gov

Posted in Food

What Is the Best Way to Measure the Color of Vegetable Oil?

Posted on Jan 28, 2026 by HunterLab

Vegetable oils like soybean oil play a pivotal role in many products and applications, from snack food manufacturing to biodiesel fuel development, commercial frying, and personal hygiene goods production. Its color directly correlates to integrity and customer perception, demonstrating the need for accurate measurements throughout manufacturing processes.

The Importance of Color Measurement in Vegetable Oil

Quantifying color in vegetable oils is essential for many reasons:

  • Quality: Color and clarity are primary quality and purity indicators in edible oils. Consistent measurement helps ensure adherence to implemented quality assurance methodologies and supports consumer confidence.
  • Money savings: Refining processes can substantially impact oil color. Establishing that color falls within tolerances at each stage helps minimize waste and prevent downstream bleaching and blending issues that can be costlier to resolve.
  • Conformance with industry standards: The American Oil Chemists' Society (AOCS) issues industry guidelines for oil analysis, including color measurement methods, suitable color models, and standards. Manufacturing contracts and specifications often require following the organization's frameworks.
  • Regulatory compliance: Vegetable oil processing and manufacturing facilities must comply with regulations set forth by the Food and Drug Administration (FDA) and the United States Department of Agriculture (USDA). Both consider color to help ensure quality and consumer safety.

Posted in Food
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Most Related Posts

  • The Complete Guide to Spice Color Measurement
  • How Color Signifies Freshness in Canned Tomato Paste
  • How Color Signifies Freshness in Canned Tomato Paste
  • The Complete Guide to Spice Color Measurement
  • ASTA Color and IC Color of Paprika and Oleoresin Spices
  • Do you have a source for color standards related to fruits and vegetables?
  • What Is the Best Way to Measure the Color of Vegetable Oil?
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