Coconut water has become a popular beverage due to its semi-sweet taste and abundant antioxidant power. As more companies start making this product, new standards based on natural coloration and intrinsic haze have come about. Because coconut water can change colour over time due to natural processes within the liquid, it's essential for production to be consistent and able to preserve the benefits without affecting the appearance.
When first extracted from a young, green coconut, coconut water offers the appearance of a transparent, plasma-like liquid. During processing, the pulp in the water contributes to a haziness that may eventually settle into sediment. The longer the water is exposed to the air, the more likely it is to affect the enzyme polyphenol oxidase (PPO). This enzyme is present in a range of fruits, including apples and avocados, and is responsible for the browning and discoloration that occurs with oxidation.
In coconut water, PPO changes the colour from a pale yellow or white to pink. While pink coconut water is not dangerous to drink, it can discourage consumers from buying the beverage. When shoppers expect their coconut water to look a certain way, too much variance can drive them away from your products and into the arms of your competitors. To prevent this, many manufacturers have begun to utilize specialty practices and technology aimed at preserving the liquid's original appearance.
According to a scientific study published by Food Science & Nutrition, the proper processing of coconut water can delay or even prevent discoloration for some time. The study indicated that high-pressure processing was superior to high-temperature short time treatment in preserving the water's original aromas, flavors, and colours.
When considering coloration changes in coconut water, manufacturers should also evaluate the effect of turbidity or haze on their product's appearance. A certain level of haze is expected in coconut water, but an excess of sediment in the drink can give it an opaque appearance, emphasizing the colour of the overall product. A quality spectrophotometer is necessary to monitor turbidity and colour levels and ensure a consistent appearance upon distribution.
For consistent measurement of coconut water colour and haze, use HunterLab's Vista spectrophotometer to benefit from industry-leading support through precisely calibrated colour measurements. This portable, self-contained benchtop spectrophotometer is capable of running colour and turbidity measurements simultaneously with the press of a button. Vista is also ideal for testing coloration throughout harvesting, sterilization, and packaging and delivers results in seconds. Request a quote from HunterLab today and revolutionize your process for coconut water production.
HunterLab goes beyond color, delivering precise, science-backed solutions that help industries achieve superior quality and appearance control. As a global leader in spectrophotometry, we empower businesses to reduce waste, improve efficiency, and enhance product consistency—directly impacting the bottom line. By combining innovation, real-world expertise, and sustainable measurement solutions, we help manufacturers optimize production, minimize material loss, and meet the highest industry standards. Follow us on LinkedIn