Inert gas blanketing, also known as ‘tank blanketing,’ is a technique that can be used to prevent spoilage in oxygen-sensitive products such as food, oils and intermediate products, and to avoid reaching explosive and flammable conditions in a container or process area.
Inert gas blanketing controls oxygen levels through the use of inert gas. The level of oxygen in the container’s headspace is measured and when certain conditions are met, the air surrounding a particular substance being processed is displaced by using inert gas to blanket the vapor space of its container.