Coffee High Purity Nitrogen Generator

Nitrogen-filling package is rapidly replacing the traditional vacuum packaging in fried food,snack food,baked food,fresh sliced agricultural products,special cheese and fresh meet.Nitrogen filling package can better maintain the taste and nutrition of foods,its application field is expected to further develop.

The deterioration of food is mostly caused by oxidation reaction under the participation of oxygen which makes micro-organisms and bacteria reproduction and leads to food spoilage.

As a kind of suffocating inert gas,nitrogen can suffocate and inhibit bacterial reproduction.The purpose of using nitrogen is to purge oxygen,slow down the oxidization and respiration of foods.

Nitrogen also have low solubility in water,thus food have little adsorption effect.Therefore,nitrogen can be used as a good gas for food preservation.

In addition,nitrogen-filling package can effectively protect the shape of packed foods,prevent the crispy and fragile food from being crushed during transportation,and avoid the internal and external pressure imbalance which causes the packed food to be pressed and boned together and avoid packed food stiffening.

Even if the shape of food is irregular,it can also maintain the beauty of the packaging surface and reduce the deterioration of the food due to the damage of packaging materials caused by surface folding.

Oxygen dissolved in liquid and oil can cause them to precipitate.Oxygen in these liquids can make them worse and shorten their life.A method called agitation(stirring the liquid by compressed gas through gas diverter) is used to process gaseous nitrogen into the liquid during brewing/extracting or production.The nitrogen bubbles can remove oxygen to prevent oxidation,decay and fading of carbonless beverages(such as coffee,juices,tea etc)and edible oils(such as peanut,olive,sunflower and rapeseed oil etc).

Other types of food need to be filled with gas to increase their volume.

Using nitrogen fluffy food oils,mayonnaise,barrel margarine or peanut oil products can increase their volume and expansion power,thus to prolong their lifespan.

Coffee,Wine,Beer,Spring water,Edible oil,Juice etc to use nitrogen for tank holding,bottle blowing and before capping can remove oxygen and prevent oxidation,spoilage, and fading of carbonless beverage and edible oil.If the cork is used,it can prevents mildew in the cork.

Puffed and fried food:Nitrogen can prevent food fluffy and flavor reversion caused by little water in the bags.Nitrogen also can keep good-looking packaging shape,and food will not be crushed in transportation.

Baked food,cake and bread:Flushing nitrogen inside the food bags can prolong freshness time and prevent food being metamorphose and crushed in transportation;

Milk Powder and soybean milk powder:Only use  a little of nitrogen gas can prevent or reduce agglomerate phenomenon of milk powder caused by long time extrusion storage.

Cereal,nut,fruit,vegetable,meat,poultry and fresh noodles:Flushing nitrogen can prevent pests harming,leaving trace oxygen can reduce breathing rate of fruit to make the fresh effect more obvious.

Candy and snack foods:Nitrogen mainly suitable for airtight bag packaging.

Performance features

In order to meet the requirements on small nitrogen-making machine in beverage and food etc package and gas adjusting storage of fruits and vegetables etc industries,Deli Machinery offers small nitrogen generator for customers’demands,it features stable and reliable operation,convenient and simple start as well as high nitrogen-making speed.The operator does not need special training.In addition,our nitrogen generator is compact design with small footprint,it also can be moved easily.

The nitrogen machine is mainly used to inject high-pressure nitrogen into cold-brew coffee to create dense foam and a smooth taste, while also reducing oxidation to preserve the flavor.

Nitrogen cold-brew process: After the coffee extracted at low temperature is cooled to below 8°C, it is injected with high-pressure nitrogen. The nitrogen dissolves in the liquid under high pressure and releases at nor.