The value test at both ends of the chain

More from Milk. The Tuesday signals briefing: retail and shopper movement, then the dairy and cheese markets, read together.

Two sets of figures arrived in the past fortnight, one from the retail checkout and the other from the wholesale market. Together, they expose the processor to pressure from opposite directions. Shoppers are buying with more care, while growth in the protein claims on which dairy has relied is slowing. In wholesale trade, powder and butter have repriced but cheese, the largest user of Britain's milk, has barely moved.

Protein is still selling but its lead is narrowing

Products carrying a 'high source of protein' claim increased value sales by 4.4% in the four weeks to 8 August, according to NIQ. Total Till sales across the major supermarkets grew by 3.1% in the same period, giving protein a lead of 1.3 percentage points. In January, NIQ recorded protein growth of 9.6% against market growth of 4.1%. Protein remains ahead, but its lead has more than halved in seven months.

August growth came from more trips and tighter choices rather than bigger baskets. Shoppers made 2% more visits and bought 1% more units, while average spending per trip held at £19.61. Online grocery sales recorded the largest movement, reaching £2.1 billion in four weeks, up 10% in value and 5% in units. Protein did not lead the health claims tracked by NIQ. Hydration claims grew by 24%, while low-calorie products containing 1 to 100 calories per 100g grew by 6.3%. A quarter of grocery sales were promotional, and NIQ expects promotions to remain important through September, possibly with the return of money-off vouchers. Dairy's fastest-growing protein product is an established one: cottage cheese volumes rose by 43% in the 12 weeks to 8 August as the average price of cow's-milk cheese fell by 1.8%.

A supplier taking a protein-led dairy line to a listing meeting now carries a heavier burden of proof. Lactalis UK and Ireland told the trade press in July that protein "has moved firmly into the mainstream". That success has weakened the claim's power to distinguish one product from another. When much of the chilled aisle can offer protein, the product must earn repeat purchases through its format and price. Its pack must also remain legible as a thumbnail because shoppers increasingly assemble their baskets on a phone. The buyer still has to decide whether the line brings new money into dairy or transfers spending from the yoghurt or cheese beside it. Cottage cheese offers a warning: its volume grew faster than that of any protein launch while its average price fell, and we found no new capacity or campaign behind the increase.

Protein may now be the price of entry rather than a source of premium pricing. A supplier that set a premium in the spring, when the same claim was growing by 9.6%, should test whether shoppers will still pay it at 4.4% growth. The listing decision turns on whether the product adds dairy purchases or applies a familiar claim to volume the category already held.

Powder and butter have turned while Cheddar stands still

Skimmed milk powder gained £110 a tonne in August, taking the UK wholesale average to £2,470, according to AHDB. Butter rose by £130 to £3,450, while bulk cream added £77 to reach £1,607. Mild Cheddar moved by £10 to £3,060. Powder rose by 5% and butter by 4%, while cheese gained less than half of one per cent. The fall has ended unevenly, leaving the product that takes most of Britain's milk almost unchanged.

The international market points in the same direction. At the Global Dairy Trade auction on 2 September, skimmed milk powder rose by 5.3%, while Cheddar fell by 6.6%. Cheddar contracts for October and November declined by more than 12%. AHDB describes UK cheese stocks as finely balanced. It also says supplies have tightened less than expected given the fall in milk production. GB deliveries averaged 32.0 million litres a day in August, 4.5% below the previous year. AHDB attributes the decline to mid-month heat stress, poor forage growth and Bluetongue across England and Wales. The milking herd had also fallen by 34,500 head in a year.

The effect on a processor's month depends on where the milk goes. AHDB's estimate of the return from a litre used for butter and powder, the AMPE, rose by 5% to 35.62 pence in August. Its equivalent measure for mild Cheddar and whey, the MCVE, increased by 1% to 35.48 pence. A powder plant able to shift milk captured most of the improvement; a cheese plant gained about a third of a penny. The cost movement is larger. Müller has announced an October milk price of 37 pence a litre, up two pence, and other processors have followed with increases of their own. A cheese maker buying milk in that market must pay two pence more from 1 October after the wholesale value of its product added only a third of a penny a litre in August and then fell at the latest international auction. Lower milk intake also spreads the same fixed cost across fewer litres. Cheese processors therefore face the margin test first.

The next GDT auction and September's UK wholesale figures will show whether Cheddar begins to follow powder and butter. If it does not, watch whether cheese processors maintain their October farmgate increases. The two pence rise in the milk price is payable every day, while an unmoved cheese market offers no means of recovering it.

What the two readings say together

The processor now faces pressure from both ends. Retailers will resist a protein premium unless the product earns it through additional sales. Wholesale buyers have little reason to pay more for Cheddar simply because milk has become dearer. Farmers, dealing with fewer cows and less forage, will receive more from October, two pence in Müller’s case, but remain below the cost of production on many contracts, according to AHDB. Each party has a reason to defend its price, leaving the processor to absorb movements in both directions.

This is the value question to which the series keeps returning. British dairy has relied for several years on protein at the shelf and on powder and butter prices in the wholesale market. Protein's growth advantage has narrowed, while the commodity recovery has left cheese behind. The industry's largest product is struggling to support the value argument at either end. The rest of the quarter will show which processor moves first on price or product.

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Source table

About the figures in this briefing

Where a number has a limit, this is where we say so.

The protein comparison. The 4.4% and 9.6% figures come from two separate NIQ Total Till releases, for the four weeks to 8 August and the four weeks to 24 January. Both measure value growth of products carrying a protein claim, but NIQ has not published them as a continuous series, and its January release describes the measure as "protein sales" where the August release says "high source of protein". We have treated them as successive readings of the same thing. If NIQ tells us they are not, we will say so here.

Why the August read, not September. NIQ had not published its four weeks to 5 September when this went to press on the morning of Tuesday 15 September. When it does, we will update the opening figure. The January comparison stands either way.

Cheese stocks. We have used AHDB’s own words: stocks are "finely balanced" and sellers are "not keen to part with cheddar cheaply". AHDB also notes that supply has tightened less than expected given the fall in milk. We have not described stocks as tight, because AHDB does not.

AMPE and MCVE. These are AHDB’s monthly estimates of what a litre of milk would return if processed into butter and skimmed milk powder (AMPE) or mild Cheddar and whey (MCVE), after stated processing costs. They are indicators, not the prices any processor actually received. AHDB publishes the components underneath both.

The farmgate comparison. The 2 pence figure is Müller’s announced October increase, to 37 pence a litre for suppliers meeting its Advantage programme conditions. Other processors have announced October rises, some larger, and they are listed in the source table. We have used Müller because it is the largest single announcement and the clearest like-for-like figure.

"Below the cost of production." This is AHDB’s own assessment, from its GB milk deliveries note of 8 September, which says milk prices "remain below cost of production for many contracts". It is not our calculation.

Cheese as the largest use of milk. Cheese is the largest single use of GB milk in AHDB’s utilisation data. We have not quoted a 2026 share in this piece because the point does not depend on the exact figure.

The next auction. The Global Dairy Trade auction on Tuesday 15 September reports mid-afternoon UK time, after this briefing publishes. If Cheddar moves sharply either way, we will add a line here.

What we left out. Several protein sales figures were available from brand and agency press material during the period, including Circana figures for cottage cheese value and individual brand growth rates. We have not used them. They are supplied by the companies whose products they describe and we could not check them against a published source.

Sources & data

• NIQ: Total Till press releases, four weeks to 8 August 2026 (published 18 August 2026) and four weeks to 24 January 2026 (published 4 February 2026)
• AHDB: dairy retail performance from NIQ Homescan, 12 weeks ending 8 August 2026, published 25 August 2026
• AHDB: UK wholesale prices and August 2026 dairy market review, published 9 September 2026
• AHDB: market indicators, AMPE and MCVE, August 2026, published 25 August 2026
• AHDB: GB milk deliveries note, Soumya Behera, 8 September 2026
• Global Dairy Trade event, 2 September 2026, as reported by Cheese Reporter
• Müller, First Milk and Freshways October 2026 milk price announcements, as reported by Farmers Guide and FarmingUK, 1 and 2 September 2026
• Grocery Trader: health-focused dairy feature, 21 July 2026 (Lactalis UK and Ireland quotation)