Most people think of welding when they think of argon gas. In fact, argon is a safe, benign gas which can be used to preserve wine, food and historical documents. For some time nitrogen was the ‘go to’ gas when it came to extending the shelf life of packaged goods but scientists have found that argon is actually 4 times more efficient than nitrogen, it is also around 40% denser than air and improves food safety. Thus argon is more effective than nitrogen in keeping food fresher for longer and improving its quality. So how does it work? Gas is used to replace oxygen which not only causes food to oxidise and spoil but allows bacteria to grow. Argon removes the oxygen very efficiently compared to nitrogen as it is denser and is able to more completely fill the spaces around food. Bacteria is starved of oxygen and enzymes that increase the rate of oxidation are inhibited. The use of food grade argon as a preserver does not add anything to the original product, rather it stops it from going bad in a completely safe way. Rent Free Gas is able to supply customers with food grade argon for a multitude of uses including the preservation of food and wine. Our rent free model allows our customers to purchase their own argon cylinder which they will never pay any rent on...ever! The cylinder will come completely full of gas and delivered for free in Sydney, Brisbane and Adelaide. Whenever more gas is needed we will simply come out and replace the empty argon cylinder with a full bottle. If a smaller c size cylinder is all you need we can post it to you anywhere in Australia. Give us a call and let one of our friendly team help you out with your argon gas needs today.