The exact same amount as everyone else. No exception. Air will displace the volume of fluid that is dispensed in ANY package. If it didn’t the bottle would “panel” excessively and look all sucked in. When fluid is dispensed it creates a vacuum inside the bottle and it quickly equalizes with the surrounding atmosphere, either down the pump mechanism or through the valve.
As previously stated we triple protect our product. This is the reason we triple protect our product. First, we immediately blend in non-GMO natural mixed tocopherols (vitamin E) to protect the oil. Second, we utilize a nitrogen environment during processing and packaging and keep the oil super-saturated with nitrogen at all times. The bottles and oil are flushed yet again during filling. Nitrogen is an inert gas that is used to displace oxygen. Third, we package in the safest bottle available that not only performs the function of oxygen barrier but also ensures that absolutely no UV light penetrates. This is the same bottle that is used to safeguard the finest oils produced for human use. Only when the consumer breaks the seal is the oil first subjected to oxygen and that is exactly why mixed tocopherols are included. Once opened it is best to use the oil within the next 6 months or so. Refrigeration is not required but is recommended for any oil.