Insoluble Impurities are substances that cannot be dissolved in water.
- That’s a measure of the presence of dirt, minerals, resins, oxidized fatty acids, alkaline soaps of palmitic and stearic acids, and proteins that are suspended in the oil
- It is determined by dissolving some oil in petroleum ether and filtering out the impurities and is expressed as a percentage (%) of the total.
- Unknown. Please consult a nutritionist.
- Not known.
Source: Oliveoiltimes, https://www.oliveoiltimes.com/faqs/what-is-insoluble-impurities-iso-663