Pick up a supermarket own-label product and the label will tell you almost nothing about who made it. The legal line reads "produced for Tesco Stores Ltd" or "packed for Aldi", and that vagueness is deliberate. The retailer owns the brand, the recipe specification and the shelf; the factory behind it is a trade secret, and sometimes it is a factory you would recognise from the branded aisle.
Own label is no longer the poor relation. Kantar's grocery data has put private label at roughly half of everything sold through UK supermarkets, and in Aldi and Lidl the figure runs at around nine tenths of the range. That scale rests on a manufacturing sector most shoppers have never heard of. Greencore makes hundreds of millions of sandwiches a year for retailers under their names, not its own. Bakkavor produces own-label houmous, ready meals and desserts across dozens of UK sites. Samworth Brothers makes premium ready meals and the retailers' pork pies alongside its own Ginsters brand. In household goods, McBride turns out own-label laundry liquid and surface cleaner for chains across Europe. These are large listed or family firms whose entire business model is anonymity.
The relationship works through specification, not trust. A retailer's technical team writes a spec covering ingredients, sourcing, weights, tolerances, shelf life, factory hygiene and packaging, then puts the contract out to tender. Factories are audited against BRCGS, the certification scheme that grew out of the British Retail Consortium's own standard, plus each supermarket's additional code of practice, with announced and unannounced visits. When a batch fails, the retailer's name is on the recall notice, which is why supermarket technologists are famously more demanding than many brand owners: Tesco's reputation, not the anonymous supplier's, absorbs the damage.
Then there is the arrangement the industry discusses quietly: branded manufacturers running own-label contracts on the same lines as their flagship products. Some firms refuse on principle and say so loudly, because admitting the practice invites the question of what, exactly, the brand premium buys. Others treat spare line capacity as free money. The retailer version usually gets a deliberately altered recipe, a different ratio here, a cheaper oil there, so both sides can truthfully say the products are not identical. But the machinery, the site accreditation and the process knowledge are shared, and the gap between the two products can be a fraction of the gap between their prices.
The tiering game
The cleverest part of own label is not making the product but splitting it into tiers. Tesco Finest arrived in 1998, Sainsbury's answered with Taste the Difference in 2000, and every major chain now runs a three-level architecture: a value tier, a standard tier and a premium tier, with the branded product sitting as the price anchor in the middle or above.
The tiers are engineered as a set. The value line exists partly to fight discounters and partly to make the standard tier look like a sensible compromise; the premium tier borrows restaurant language, matte packaging and provenance claims to justify a price that still undercuts dining out. What actually changes between tiers varies by category. In some, the differences are real: higher meat content in the premium sausage, a longer-matured cheddar, hand-finished pastry that needs a slower line. In others, the specification gap is thin and the work is done by pack design, portion count and shelf position. Retailers have also faced scrutiny for shrinking or repositioning value ranges when inflation bites, precisely because the bottom tier is a marketing instrument as much as a product.
Price architecture completes the trick. The premium own-label item is routinely priced just below the leading brand, close enough to signal comparable quality, far enough to feel like a win. Since the retailer controls the shelf, it also controls the comparison: the Finest lasagne sits at eye level next to the branded one, and the gap is exactly as wide as the category team wants it.
None of this makes own label a con. Margins on private label are typically better for the retailer even at lower prices, because there is no brand-marketing cost baked in, and the specification-and-audit machinery genuinely polices quality. The honest summary is that the British weekly shop is largely manufactured by companies nobody has heard of, to standards written by the supermarkets themselves, and then sorted into good, better and best by people whose real craft is pricing the difference.
