Conventional Potatoes

Non-organic potatoes.

58Moderate burden · out of 100
Cleaner swapOrganic potatoes, or peel before cooking

How this score is built

  1. 100Start
  2. 86.2Chemical hazard 3 × 4.6−13.8
  3. 65.8Everyday exposure 6 × 3.4−20.4
  4. 58Persistence 3 × 2.6−7.8
  5. ModerateThe band58 sits in 40–59.

What each input rests on

The three ratings behind the score, and the studies each rests on
InputRatingEvidence
Chemical hazard3/10unsourced input
Everyday exposure6/10
  • In stored potatoes treated with the sprout inhibitor chlorpropham, whole tubers carried about 15 mg/kg after 28 days and 9 mg/kg after 85 days, peels 20-50 mg/kg, and peeled tubers about 1 mg/kg.

    Level and fate of chlorpropham in potatoes during storage and processing · J Environ Sci Health B 2009

    DOI 10.1080/03601230802519470 · PMID 19089708 · Abstract · read 2026-10-09

Persistence3/10unsourced input

Ratings are editorial. A study listed here supports the rating; it did not compute it. How the index is built

What this means for you

It scores as it does mainly because of how much everyday contact it involves. Conventional potatoes are treated with chlorpropham, a sprout-inhibitor found on the skin of many samples. Because potatoes are eaten so often, the cumulative exposure adds up — peeling or buying organic reduces it.

Evidence strength: moderate

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Lower-exposure choices