To be safe, don’t heat hemp oil hotter than 190°C or for longer than an hour — this is the advice from the researchers.
Scientific Claim
The study recommends limiting heating of hemp seed oil to below 190°C for less than one hour to ensure quality and safety, based on observed changes in fatty acid profiles and physicochemical properties.
Original Statement
“To ensure the quality and safety of hemp seed oils, it is recommended to limit heating treatment below 190 °C for durations of less than 1 h.”
Evidence Quality Assessment
Claim Status
overstated
Study Design Support
Design cannot support claim
Appropriate Language Strength
association
Can only show association/correlation
Assessment Explanation
The claim uses prescriptive language ('it is recommended') implying safety assurance, but the study design (in vitro, no health outcomes, no control group) cannot validate safety thresholds. The verb should reflect uncertainty.
More Accurate Statement
“Based on observed changes in fatty acid profiles and physicochemical properties, the authors suggest that heating hemp seed oil below 190°C for less than one hour may help preserve quality, though safety cannot be confirmed without further validation.”
Evidence from Studies
Supporting (1)
Effect of cooking temperature and time on the quality and safety of hemp seed oil.
The scientists heated hemp oil at different temperatures and times and found that keeping it under 190°C for less than an hour kept it healthiest and safest — so the study agrees with the claim.