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Did Hartley's shrink its products?

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Updated 2026-10-21 (latest case added) · 1 sourced case, each linked to its source

Did Hartley's shrink its products? Yes. We have 1 documented shrinkflation case for Hartley's dated 2026, reported in the UK. Hartley's Best jam (UK) went from 340 g to 300 g (−11.8%), a 13.3% hidden price rise per unit if the price stayed the same. Where the source recorded the shelf price before and after (1 case), 1 got more expensive per unit.

Size Facts
Did Hartley's products shrink?Yes
Documented cases1
Biggest cut−11.8%
Median cut−11.8%
Hidden rise per unit at the same price (median)+13.3%
Years2026
Most recent2026
CountriesUnited Kingdom
Pricier per unit (of 1 priced)1
Tracked daily0

1 documented case. Biggest cut: Hartley's Best jam (UK), 340 g → 300 g (−11.8%). See cases below.

Jam & spreads shrinkflation

Each case links to its source. Compare with the worst offenders, or check any pack with the shrinkflation calculator.

Documented cases (1)

FAQ

Did Hartley's shrink its products?

Yes. ShrinkRadar has 1 documented, sourced shrinkflation case for Hartley's (2026). Hartley's Best jam (UK) went from 340 g to 300 g (−11.8%), dated 2026.

When did Hartley's shrink its products?

The source dates it 2026.

Who reported Hartley's shrinkflation?

It comes from allsupers.co.uk, covering the UK. Each case page quotes and links its source.

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