Why food brands are reformulating and how sensory testing becomes essential
The progressive elimination of synthetic colourants from the food system is more than a symbolic gesture — it's a clear signal of structural transformation.
Regulation, consumer perception, and brand strategy are converging to drive deep reformulation across categories. This shift challenges traditional ways of measuring and validating the sensory integrity of food products.
A regulatory shift with immediate impact
In 2025, the U.S. Food and Drug Administration (FDA) announced it would begin phasing out several petroleum-based synthetic dyes — such as Red 40 and Yellow 5 — from the national food supply.
This decision is based on:
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Growing scientific evidence of health impacts, particularly in children.
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Pressure from consumer groups and researchers.
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A new public health paradigm around food safety and labeling.
Major food companies are responding preemptively.
They are reformulating not because they must — but because they understand what’s at stake.
¿Por qué importa desde lo sensorial?
From a sensory standpoint, colour plays a leading role.
It’s one of the most influential attributes before tasting even begins.
Studies show that:
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Colour alters perceived flavor. A duller soft drink may seem less sweet.
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Colour creates expectations. A paler snack may be seen as less flavorful.
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Colour drives familiarity. Changing it disrupts the consumer’s sensory memory.
Colour is also linked to emotion, pleasure, and even satiety.
It’s not decorative — it’s experiential.
Removing a colourant alters the product’s sensory profile.
That impact needs to be measured, not assumed.
What are leading brands doing?
Several major players have already taken action:
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PepsiCo: Removing synthetic dyes from Cheetos and Gatorade, replacing them with natural ingredients like turmeric, beet, and purple carrot.
The ingredient changes — but so does the colour, and therefore the expected taste.
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Nestlé USA: Over 90% of its U.S. portfolio is now FD&C dye-free.
A quiet but monumental reformulation and validation effort.
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Walmart: Pledges to remove all synthetic dyes from private brands by January 2027.
A move driven not only by regulation, but by consumer trust.
Other brands following suit:
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General Mills: Reformulating children’s cereals with natural colourants.
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J.M. Smucker: Cleaner formulations for spreads and snack brands.
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Conagra Brands: Removing synthetic colours from frozen lines.
The role of sensory testing in this transition
When a colourant is removed, replacing it visually is not enough.
You must validate the full sensory experience.
This is where sensory testing becomes a strategic asset:
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Discriminative testing (e.g., triangle tests): detect perceivable differences between old and new versions.
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Consumer acceptance testing: assess if the reformulated product is still liked and trusted.
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Sensory shelf-life testing: understand how perception evolves over time — in flavor, texture, and appearance.
Reformulation is not just technical.
It’s perceptual.
And it demands real data.
Conclusión: medir para avanzar
Colour may disappear from the product, but not from the consumer’s perception.
In the face of inevitable transformation, brands that invest in rigorous sensory analysis will be better prepared to deliver products that are consistent, desirable, and aligned with consumer expectations.
The real question isn’t if you’ll reformulate — but how you’ll validate that your product still works.
📊 When colour disappears, sensory becomes essential
Reformulating without losing sensory identity is no easy task.
At Sensesbit, we support R&D, QA, and marketing teams with real sensory data to make informed reformulation decisions.
Because when flavor can no longer hide behind colour —
sensory science becomes the ingredient that matters most.