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Did Cadbury Dairy Milk gifting bars, Huge Congrats and Thank You (UK) shrink?

Size FactsDid it shrink? Yes
Before360 g
After345 g
−4.2%smaller
Price per 100 g · observed+4.3%Shelf price £5.00 → £5.00, as recorded by the source.

Before you paid £1.39 per 100 g; after, £1.45 per 100 g: 4.3% more for the same amount.

How big a cut? The 185th-largest of 189 documented chocolate & candy cuts; a bigger cut than 3% of all 1,366 cases in the library. See the biggest cuts →

When
2026 · reported 11 Aug 2026
Country
United Kingdom
Brand
Cadbury
Category
Chocolate & Candy
Source
allsupers.co.uk

Source and evidence

CADBURY DAIRY MILK HUGE CONGRATS CHOCOLATE BAR 345G: 360 g → 345 g — Shrinkflation | Allsupers | Allsupers allsupers.co.uk

Source fetched 2026-10-21. All 59 Allsupers cases.

Found by Allsupers' automated check of Tesco listings: the old listing disappeared and a smaller pack of the same product appeared (new pack since 11 August 2026); regular price £5.00 before, £5.00 after. Other matching Allsupers records: record 16283.

Evidence
Typeautomated supermarket price tracker (Allsupers register; retailer listings, regular prices recorded)
Confidencemedium
Size cut alone, at the old price+4.3%

Check the math in the calculator or compare old and new unit prices.

Against official inflation: ONS CPI (UK) “sugar, jam, honey, syrups, chocolate and confectionery” changed +0.5% (12 months to Aug 2026). This pack’s price per gram changed +4.3%, 3.8 percentage points above the official rate, using the shelf prices the source recorded. Every case is compared the same way in the ShrinkRadar Index.

What the source says

“Before: CADBURY DAIRY MILK HUGE CONGRATS CHOCOLATE BAR 360G (Tesco), size 360 g, regular price £5.00, price per unit £13.89/kg. Now: CADBURY DAIRY MILK HUGE CONGRATS CHOCOLATE BAR 345G (Tesco), size 345 g, regular price £5.00, price per unit £14.49/kg. First detected: 11 August 2026. New pack since 11 August 2026.”

More from the UK: the UK Shrinkflation Tracker has all 175 documented cases, sortable and filterable.

Topic guide: chocolate shrinkflation, every documented case in one place, brand by brand.

More from Cadbury

All 32 Cadbury cases →

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Cite this case

ShrinkRadar, “Did Cadbury Dairy Milk gifting bars, Huge Congrats and Thank You (UK) shrink? 360 g → 345 g”, https://shrinkradar.com/cases/cadbury-dairy-milk-gifting-bars-huge-congrats-and-thank-you-uk-uk-2026.html, accessed 2026-11-05. Original source: CADBURY DAIRY MILK HUGE CONGRATS CHOCOLATE BAR 345G: 360 g → 345 g — Shrinkflation | Allsupers | Allsupers (https://allsupers.co.uk/research/shrinkflation/ean_swap/16126).

You may quote and cite this case with credit. No bulk reuse or republishing of the dataset without permission: licence and how to cite.