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Did McVitie's Digestives twin pack (UK) shrink?

Size FactsDid it shrink? Yes
Before720 g
After630 g
−12.5%smaller
Price per 100 g · observed+5.4%Shelf price £3.20 → £2.95, as recorded by the source.

Before you paid £0.44 per 100 g; after, £0.47 per 100 g: 5.4% more for the same amount.

How big a cut? The joint 30th-largest of 56 documented cookies & crackers cuts (tied with 6 others); a bigger cut than 48% of all 1,366 cases in the library. See the biggest cuts →

When
2026 · reported 25 Aug 2026
Country
United Kingdom
Brand
McVitie's
Category
Cookies & Crackers
Source
allsupers.co.uk

Source and evidence

McVitie's Digestives 2 x 315g Original Twin Pack Biscuits: 720 g → 630 g — Shrinkflation | Allsupers | Allsupers allsupers.co.uk

Source fetched 2026-10-22. All 59 Allsupers cases.

Found by Allsupers' automated check of Sainsbury's listings (record 18761): the old listing disappeared and a smaller pack of the same product appeared (first detected 2026-08-25); regular price £3.20 before, £2.95 after. 2 × 360 g became 2 × 315 g.

Evidence
Typeautomated supermarket price tracker (Allsupers register; retailer listings, regular prices recorded)
Confidencemedium
Size cut alone, at the old price+14.3%

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

Against official inflation: ONS CPI (UK) “other bakery products” changed +0.2% (12 months to Aug 2026). This pack’s price per gram changed +5.4%, 5.2 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: McVitie's Digestives The Original Biscuits Twin Pack 2x360g (Sainsbury's), size 720 g, regular price £3.20, price per unit £4.44/kg. Now: McVitie's Digestives 2 x 315g Original Twin Pack Biscuits (Sainsbury's), size 630 g, regular price £2.95, price per unit £4.68/kg. First detected: 25 August 2026. New pack since 25 August 2026.”

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

Topic guide: cookie, biscuit and cracker shrinkflation, every documented case in one place, brand by brand.

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Cite this case

ShrinkRadar, “Did McVitie's Digestives twin pack (UK) shrink? 720 g → 630 g”, https://shrinkradar.com/cases/mcvitie-s-digestives-twin-pack-uk-uk-2026.html, accessed 2026-11-05. Original source: McVitie's Digestives 2 x 315g Original Twin Pack Biscuits: 720 g → 630 g — Shrinkflation | Allsupers | Allsupers (https://allsupers.co.uk/research/shrinkflation/ean_swap/18761).

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