Chemical guide
Phthalates in food: what we test and how to read the results
By Laboratory.love · Published
Review: this guide has not been independently peer reviewed. Regulatory status is current as of the date above.
Phthalates are chemicals added to plastics, most often PVC, to make them soft and flexible. They can reach food from packaging and other food-contact materials, including adhesives, lubricants, and sealants. Laboratory.love measures 18 phthalates in the finished food itself and reports each in ng/g (parts per billion). The European Food Safety Authority’s tolerable daily intake for the combined group of DEHP, DBP, BBP, and DINP is 50 µg per kg of body weight per day, expressed as DEHP equivalents. A test result describes the samples tested, not every unit of a product.
What phthalates are
Ortho-phthalates, usually just called phthalates, are plasticizers: they make plastic, especially polyvinyl chloride (PVC or vinyl), softer and less brittle. The U.S. Food and Drug Administration describes their food-related uses as food packaging and minor food-contact uses such as components of adhesives, lubricants, and sealants. They are not authorized to be added directly to food.
Phthalates can migrate from plastic into the food it touches, which is why food-contact rules limit migration. A measurement of the finished food includes phthalates from every source it was exposed to, whether packaging, processing, or ingredients.
Which phthalates we test
Every Laboratory.love sample is analyzed for 18 phthalates by GC-MS/MS at Light Labs, an ISO/IEC 17025-accredited laboratory. Phthalate substitutes and DIDP are also reported when the laboratory panel includes them. The complete protocol is in our methodology.
Primary panel (18)
- Dimethyl phthalate
- Diethyl phthalate
- Diallyl phthalate
- Diisobutyl phthalate
- Dibutyl phthalate
- Bis (2-methoxyethyl) phthalate
- Bis (4-methyl-2-pentyl) phthalate
- Bis (2-ethoxyethyl) phthalate
- Dipentyl phthalate
- Dihexyl phthalate
- Benzylbutyl phthalate
- Bis (2-n-butoxyethyl) phthalate
- Dicyclohexyl phthalate
- Bis (2-ethylhexyl) phthalate
- Diphenylphthalate
- Di-n-octylphthalate
- Diisononyl ortho phthalate
- Dinonyl phthalate
Reported when included
- Diisodecyl adipate (DIDA)
- Di (2-ethylhexyl) terephthalate (DEHT)
- Diisodecyl phthalate (DIDP)
- Diisononyl 1,2-cyclohexanedicarboxylic acid (DINCH)
- Diethylhexyl adipate (DEHA)
Finished-food testing is not packaging-compliance testing
Food-contact regulation controls the material, not the food. In the European Union, Regulation (EU) No 10/2011 sets specific migration limits: the maximum amount of a substance allowed to move from a plastic material into food. For materials not yet in contact with food, compliance is checked in food simulants, test liquids such as dilute ethanol, dilute acetic acid, or vegetable oil that mimic how foods draw substances out of plastic. The regulation also restricts where specific phthalates may be used; for example, DEHP and DBP may be used as plasticizers only in repeated-use materials that contact non-fatty foods.
In the United States, the FDA regulates which phthalates may be used in food-contact materials and for what purposes. As of September 2026 it authorizes nine: eight as plasticizers and one as a monomer.
Finished-food testing answers a different question: how much of each phthalate is in the food as sold, from every source combined. It cannot show whether a particular package complied with a migration limit, and it cannot say which source a chemical came from. Conversely, a package that passes migration testing does not tell you the concentration in a specific food. EFSA noted in 2019 that there was not enough information to conclude how much migration from plastic food-contact materials contributes to dietary phthalate exposure.
Tolerable daily intakes
EFSA’s 2019 assessment kept the individual tolerable daily intakes (TDIs) it set in 2005 and added a group TDI of 50 µg/kg body weight per day for DEHP, DBP, BBP, and DINP, expressed as DEHP equivalents. The group reflects a plausible common mechanism, reduced fetal testosterone. DIDP is assessed separately. EFSA described the assessment as temporary.
| Phthalate | Individual TDI (µg/kg bw/day) | Critical effect | In group TDI |
|---|---|---|---|
| DEHPBis (2-ethylhexyl) phthalate | 50 | Reproductive | Yes |
| DBPDibutyl phthalate | 10 | Reproductive | Yes |
| BBPBenzylbutyl phthalate | 500 | Reproductive | Yes |
| DINPDiisononyl ortho phthalate | 150 | Liver | Yes |
| DIDPDiisodecyl phthalate | 150 | Liver | No |
Our result pages weight DBP ×5, BBP ×0.1, and DINP ×0.3 relative to DEHP and compare the sum with the group TDI, as described in the methodology. Other measured phthalates are shown but do not enter this score.
In the United States, the FDA revoked authorizations for 23 phthalates in 2022 because industry had abandoned those uses, not because of a new safety finding. In May 2026 it proposed treating DEHP, DCHP, DIOP, and DINP as a related group for a future cumulative risk assessment.
How to read a phthalate result
- Units. ng/g means nanograms per gram of food, numerically the same as parts per billion. 1,000 ng/g is 1 µg/g, or 1 mg/kg.
- Detected, below LOQ, not detected. A detected value is a quantified concentration. Below the limit of quantitation means the chemical may be present but not at a level the laboratory can measure reliably. Not detected means the laboratory reported a non-detect. None of these shows the product is free of the chemical.
- Samples differ. PlasticList found that two samples of the same product differed in plastic-chemical levels by an average of 59% (relative percent difference). That is why we test three samples of each product.
- Exposure depends on how much you eat. A concentration becomes an intake only when multiplied by the amount eaten, and it is compared with a TDI using body weight.
Worked example (illustrative values)
A food with 30 ng/g DEHP and 10 ng/g DBP, eaten in a 50 g serving, contains (30 + 5 × 10) × 50 = 4,000 ng of DEHP equivalents. That is 0.11% of the group TDI for a 70 kg adult and 0.57% for a 14 kg child. A single food is only one part of total daily exposure.
What our testing has found
See the 2026 analysis of Laboratory.love-commissioned results for how often each phthalate was detected and at what concentrations, the results directory for every product, and the open dataset for sample-level measurements. Our guide to reading lab results explains units, detection status, and exposure step by step. For BPA, BPS, and BPF, see our bisphenols guide.
Sources
- U.S. FDA. Phthalates in Food Packaging and Food Contact Applications
- EFSA CEP Panel (2019). Update of the risk assessment of DBP, BBP, DEHP, DINP and DIDP for use in food contact materials. EFSA Journal 17(12):5838
- Commission Regulation (EU) No 10/2011 on plastic materials and articles intended to come into contact with food (consolidated text of 31 August 2023)
- PlasticList. Report: If you buy the same product twice, how much will chemical levels vary?
- Laboratory.love testing and risk methodology, version 1.0
Corrections
Report errors through the contact page. Confirmed corrections are dated on this page and in the changelog, following the methodology’s correction policy. This guide is general information, not medical advice.
Test a food you eat
We test three retail samples of a packaged food for 18 phthalates plus BPA, BPS, and BPF, and publish the results.