Potatoes from United Kingdom
How often official samples of potatoes grown in United Kingdom break the EU maximum residue level for pesticides, by why the sample was taken.
There are only 5 random market samples, too few for a market rate. UK supermarkets: 1229 samples since 2021, 9 above the UK limit.
Random market samples
5 random samples (0 over the limit). That is too few for a market rate: one is shown from 30.
Also on file, never turned into a rate because inspectors chose them: 1 risk-based and 1 follow-up samples.
UK supermarket samples
| Month | Retailer | Residues found (mg/kg) |
|---|---|---|
| 2026-07 | Other shops | Fosetyl-Al (sum) 16 (MRL = 200) |
| 2026-07 | Other shops | 1,4-dimethylnaphthalene 0.5 (MRL = 15); Fosetyl-Al (sum) 18 (MRL = 200); maleic hydrazide 32 (MRL = 60) |
| 2026-07 | Other shops | Fosetyl-Al (sum) 35 (MRL = 200); maleic hydrazide 13 (MRL = 60) |
| 2026-07 | Other shops | 1,4-dimethylnaphthalene 0.6 (MRL = 15); Fosetyl-Al (sum) 3 (MRL = 200) |
| 2026-07 | Other shops | Fosetyl-Al (sum) 2.2 (MRL = 200); maleic hydrazide 5.9 (MRL = 60); propamocarb (sum) 0.01 (MRL = 0.3) |
| 2026-07 | Other shops | 1,4-dimethylnaphthalene 0.1 (MRL = 15); flonicamid (sum) 0.03 (MRL = 0.09); Fosetyl-Al (sum) 1.2 (MRL = 200); maleic hydrazide 5.6 (MRL = 60) |
| 2026-07 | Other shops | flonicamid (sum) 0.03 (MRL = 0.09); Fosetyl-Al (sum) 18 (MRL = 200); maleic hydrazide 16 (MRL = 60) |
| 2026-07 | Other shops | Fosetyl-Al (sum) 4.7 (MRL = 200); maleic hydrazide 15 (MRL = 60) |
| 2026-06 | Other shops | fludioxonil 0.01 (MRL = 5); Fosetyl-Al (sum) 1 (MRL = 200); propamocarb (sum) 0.01 (MRL = 0.3) |
| 2026-06 | Costco | none found |
| 2026-06 | Other shops | Fosetyl-Al (sum) 1.5 (MRL = 200); maleic hydrazide 12 (MRL = 60) |
| 2026-06 | Other shops | 1,4-dimethylnaphthalene 0.02 (MRL = 15); Fosetyl-Al (sum) 2 (MRL = 200); maleic hydrazide 20 (MRL = 60) |
| 2026-06 | Other shops | flonicamid (sum) 0.02 (MRL = 0.09); Fosetyl-Al (sum) 3.9 (MRL = 200) |
| 2026-06 | Other shops | 1,4-dimethylnaphthalene 0.4 (MRL = 15); maleic hydrazide 19 (MRL = 60) |
| 2026-06 | Other shops | none found |
| 2026-05 | Other shops | maleic hydrazide 5.3 (MRL = 60) |
| 2026-05 | Other shops | 1,4-dimethylnaphthalene 0.2 (MRL = 15); Fosetyl-Al (sum) 1 (MRL = 200); maleic hydrazide 3.1 (MRL = 60) |
| 2026-05 | Other shops | 1,4-dimethylnaphthalene 0.6 (MRL = 15); Fosetyl-Al (sum) 0.5 (MRL = 200); maleic hydrazide 7.7 (MRL = 60) |
| 2026-05 | Other shops | 1,4-dimethylnaphthalene 0.01 (MRL = 15); maleic hydrazide 6.1 (MRL = 60) |
| 2026-05 | Other shops | Fosetyl-Al (sum) 1.7 (MRL = 200) |
| 2026-05 | Other shops | Fosetyl-Al (sum) 1.7 (MRL = 200); maleic hydrazide 4.3 (MRL = 60) |
| 2026-05 | Other shops | 1,4-dimethylnaphthalene 0.4 (MRL = 15); maleic hydrazide 14 (MRL = 60) |
| 2026-05 | Other shops | flonicamid (sum) 0.02 (MRL = 0.09); Fosetyl-Al (sum) 1.4 (MRL = 200); maleic hydrazide 11 (MRL = 60) |
| 2026-05 | Other shops | maleic hydrazide 2.3 (MRL = 60) |
| 2026-05 | Other shops | fluopyram 0.01 (MRL = 0.15) |
| 2026-05 | Other shops | none found |
| 2026-04 | Other shops | 1,4-dimethylnaphthalene 0.3 (MRL = 15); maleic hydrazide 5.3 (MRL = 60) |
| 2026-04 | Other shops | 1,4-dimethylnaphthalene 0.5 (MRL = 15); Fosetyl-Al (sum) 0.3 (MRL = 200); maleic hydrazide 19 (MRL = 60) |
| 2026-04 | Other shops | flonicamid (sum) 0.03 (MRL = 0.09); Fosetyl-Al (sum) 19 (MRL = 200); maleic hydrazide 21 (MRL = 60) |
| 2026-04 | Other shops | 1,4-dimethylnaphthalene 0.03 (MRL = 15); maleic hydrazide 11 (MRL = 60) |
| 2026-04 | Other shops | 1,4-dimethylnaphthalene 1 (MRL = 15); Fosetyl-Al (sum) 4.6 (MRL = 200); maleic hydrazide 8.1 (MRL = 60) |
| 2026-04 | Other shops | Fosetyl-Al (sum) 8.7 (MRL = 200); flonicamid (sum) 0.03 (MRL = 0.09); 1,4-dimethylnaphthalene 0.4 (MRL = 15) |
| 2026-04 | Other shops | Fosetyl-Al (sum) 5.8 (MRL = 200) |
| 2026-04 | Other shops | flonicamid (sum) 0.02 (MRL = 0.09); Fosetyl-Al (sum) 6.5 (MRL = 200); maleic hydrazide 12 (MRL = 60) |
| 2026-04 | Other shops | 1,4-dimethylnaphthalene 0.01 (MRL = 15); Fosetyl-Al (sum) 3.4 (MRL = 200); maleic hydrazide 11 (MRL = 60) |
| 2026-04 | Other shops | flonicamid (sum) 0.03 (MRL = 0.09); Fosetyl-Al (sum) 19 (MRL = 200); maleic hydrazide 23 (MRL = 60) |
| 2026-04 | Other shops | none found |
| 2026-04 | Other shops | flonicamid (sum) 0.02 (MRL = 0.09); Fosetyl-Al (sum) 14 (MRL = 200) |
| 2026-04 | Other shops | 1,4-dimethylnaphthalene 0.5 (MRL = 15); flonicamid (sum) 0.01 (MRL = 0.09); maleic hydrazide 16 (MRL = 60) |
| 2026-04 | Other shops | 1,4-dimethylnaphthalene 0.2 (MRL = 15); flonicamid (sum) 0.02 (MRL = 0.09); Fosetyl-Al (sum) 5.9 (MRL = 200); maleic hydrazide 21 (MRL = 60) |
Defra's Pesticide Residues in Food programme. UK limits mirror the EU's as retained in 2021 and may since differ. Showing the latest 40 of 1229.
Testing a shipment?
The substances listed on this page are the ones that most often break the EU limit on this product from this origin. A lab panel that covers them is the cheapest way to avoid a rejection.
Exporter residue report: United Kingdom
Every product from United Kingdom ranked by EU border-check and market findings, the substances behind them, and the check frequencies coming into force. Sign up and we email you once when it is ready.
Data
Download every sample behind this page (CSV): series, reporting country, year, month, over the limit, substances. How each sample is classified.