Did Post Cocoa Pebbles cereal box shrink?
How big a cut? The 67th-largest of 67 documented breakfast cereals cuts; among the smallest cuts of all 1,366 cases in the library. See the biggest cuts →
- When
- 2022 · reported May 2022
- Country
- United States
- Brand
- Post
- Category
- Breakfast Cereals
- Source
- talkbusiness.net
Source and evidence
Against official inflation: BLS CPI-U (US) “breakfast cereal” changed +12.2% (12 months to May 2022). The size cut alone raises the price per ounce by +2.8% if the shelf price stayed the same (the source recorded no prices). Every case is compared the same way in the ShrinkRadar Index.
What the source says
“…The prices of the products remained the same. Post Holdings recently reduced the size of its Cocoa Pebbles cereal from 20.05 ounces to 19.5 ounces. The company took a price increase at the same time from $3.99 to $4.95 for the smaller box.”
More from the US: the US Shrinkflation Tracker has all 296 documented cases, sortable and filterable.
Topic guide: cereal shrinkflation, every documented case in one place, brand by brand.
More from Post
All 3 Post cases →- Breakfast Cereals · 2025
Post Premier Protein cereal
11 → 9 oz−18.2%
United States · Source: mouseprint.org - Breakfast Cereals · 2022
Post Honey Bunches of Oats
14.5 → 12 oz−17.2%
United States · Source: mouseprint.org
Post products we track
Post brand page →- Breakfast Cereals
Post grape-nuts cereal
Net wt.20.5 OZ (1 LB 4.5 OZ) 581 gNo size change23 checks · last 2026-11-05
- Breakfast Cereals
Post Honeycomb Cereal 32 oz
Net wt.32 ozNo size change19 checks · last 2026-11-05
- Breakfast Cereals
Post Big Biscuit Shredded Wheat
Net wt.15 ozNo size change18 checks · last 2026-11-05
More breakfast cereals in United States
All 21 in the case library →- Breakfast Cereals · 2026
Stop & Shop instant oatmeal packets
10 → 8 packets−20.0%
United States · Source: mouseprint.org - Breakfast Cereals · 2026
Kellogg's Corn Pops
18.1 → 16.4 oz−9.4%
United States · Source: mouseprint.org - Breakfast Cereals · 2024
Kellogg's Special K Red Berries Cereal
16.9 → 15.6 oz−7.7%
United States · Source: mouseprint.org
Newest in breakfast cereals
Cereal shrinkflation →- Breakfast Cereals · 2026
Dorset Cereals Simply Delicious → Delicious Fruit & Nut Muesli
650 → 500 g−23.1%
United Kingdom · Source: thegrocer.co.uk - Breakfast Cereals · 2026
Dorset Cereals Simply Fruity → Fantastically Fruity Muesli
630 → 500 g−20.6%
United Kingdom · Source: thegrocer.co.uk - Breakfast Cereals · 2026
Dorset Cereals Simply Nutty → Gloriously Nutty Muesli
560 → 500 g−10.7%
United Kingdom · Source: thegrocer.co.uk
