The utilization of nitrogen in food processing holds great significance in preventing discoloration (caused by oxidation), inhibiting the growth of bacteria and mold, and maintaining the taste and texture of food products. Throughout the food manufacturing and processing stages, nitrogen can be employed to purge tubes, pipes, and containers before the product is processed further. Additionally, it is used for purging and filling glass jars, bottles, cans, plastic containers, and plastic and cellophane bags in which food is stored until it is purchased and consumed.

Nitrogen gas is widely employed in food preservation, often through a technique called "flushing." In this process, food is placed within its packaging, and nitrogen is introduced to fill the container. The nitrogen displaces oxygen, effectively expelling it from the package. Subsequently, the package is sealed securely to prevent the escape of nitrogen. This method significantly extends the shelf life of food products and offers a protective cushioning layer, particularly valuable for delicate items like chips, pretzels, and popcorn.

Vacuum packing is an effective means of prolonging shelf life by removing all air from the packaging before sealing it. However, even with the best vacuum packing machines, a small amount of oxygen may still remain inside the package. To address this, vacuum packing with nitrogen is an excellent solution. In this process, nitrogen is introduced into the package before vacuum sealing, displacing any residual oxygen. The package is then vacuum-sealed to eliminate all remaining air. Nitrogen vacuum packing is particularly well-suited for delicate items, as the gas provides a cushion that minimizes the risk of breakage.

AirSurr has been a reputable manufacturer of high-quality nitrogen generators for over three decades. We offer both standard and custom nitrogen generators tailored to the specific requirements of the food processing and packaging industries. Our offerings encompass Pressure Swing Adsorption (PSA) nitrogen generators, membrane nitrogen generators, and engineered nitrogen systems. Your choice of generator will depend on factors such as your overall budget for purchase and installation, as well as the desired nitrogen purity levels. For instance, if you require 99 percent purity, a nitrogen membrane generator may be the optimal choice. Alternatively, if you seek a generator that provides rapid return on investment and low year-round nitrogen production costs, a PSA system may be more suitable.