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Translucent Beverage Color Measurement

Liquid refreshments, or 'beverages', consist of a broad group of consumable liquids - ranging from carbonated soft drinks, fruit / vegetable juices, and milk to coffee, tea, and hot chocolate, as well as, spirits. Beverages form a key part of the culture of human society, and major brand owners know the importance that color appeal and color consistency play in a consumer's decision to purchase. That's why many of the world's leaders in beverage production, like Coca-Cola, PepsiCo, Unilever and Lipton, to name a few, rely on HunterLab's 60+ years of experience and knowledge in providing color measurement solutions to the beverage market.

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    Translucent beverages may benefit from either transmittance or reflectance measurement modes, depending on the thickness of the light path selected:

    • - If at the path length that your customer will view the sample, you can see slight details of your thumb or finger through the liquid, then transmittance is the preferred measurement method.

    • - If you cannot see slight details, then reflectance measurement using directional 45°/0° is preferred, though it is also possible to use diffuse d/8° sphere geometry.

    Path length is defined as the thickness of the sample from where the light enters to where it exits the sample. A simple test to determine the translucency is to pour the liquid into a clear container that simulates the thickness that the sample will normally be viewed, and hold your thumb on the back of the container and look through the sample.