Sales of unhomogenised milk have surged recently as consumers seek products perceived as more natural and less processed. Waitrose reported a 34 percent increase in sales of its unhomogenised milk over the past year, alongside a 200 percent rise in online searches for the product. Unhomogenised milk differs from the standard homogenised variety in that it is not mechanically processed to break up fat globules, allowing the cream to separate and rise to the top naturally.

Dan Robinson, food processing manager at the Leckford Estate, which supplies milk for Waitrose, attributed the rising demand to both the “delicious” taste of unhomogenised milk and consumer interest in whole foods. Despite costing more than twice the price of homogenised milk—retailing at approximately £1.95 per litre compared to £1.75 for 2.3 litres of semi-skimmed—interest in unhomogenised milk appears driven by preference rather than price.

Homogenised milk, which has been the supermarket standard since the 1970s, undergoes high-pressure processing to evenly distribute tiny fat droplets throughout the milk, resulting in a consistent texture. Unhomogenised milk, often called “gold top milk” due to the foil caps on glass bottles used during earlier home deliveries, retains the cream layer that many associate with traditional milk consumption.

Nutritionists note that while unhomogenised milk may evoke nostalgia and enjoys popularity among some consumers, scientific evidence does not currently support significant health advantages over homogenised milk. Both types contain comparable levels of nutrients such as protein, calcium, and vitamin B12, and both are pasteurised to eliminate harmful bacteria. Nutritionist Rhiannon Lambert cautioned that homogenisation primarily alters the physical structure of fat droplets without impacting nutritional composition.

Some theories suggest that the presence of larger fat globules and milk fat globule membranes (MFGM) in unhomogenised milk may influence digestion or confer minor cognitive and cardiovascular benefits, as phospholipids in MFGM have been linked to brain development and reduced inflammation. However, these findings are largely based on studies involving infant formula or supplements rather than unhomogenised milk itself, which contains only about 2 percent MFGM. Nutritionist Laura Southern emphasized these potential benefits remain speculative and not firmly established by scientific research.

Consumers report mixed sensory experiences, with some appreciating the creamier taste and texture while others find the cream separation less appealing or inconvenient. Unhomogenised milk typically requires shaking before use to redistribute the cream, and it may not integrate well in certain beverages such as iced drinks.

Despite involving less mechanical processing, unhomogenised milk tends to be more expensive due to limited production volumes and sourcing from smaller farms. It is widely available across major retailers including Ocado and Tesco, often marketed under premium ranges.

While unhomogenised milk may offer a different sensory profile and appeal to those seeking a perceived return to traditional foods, experts agree it is not a necessity from a nutritional standpoint. The decision to purchase often hinges on personal preference and willingness to pay a premium rather than clear health benefits.