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Does Propane Go Bad? Storage Tips, Precautions, and More

Does Propane Go Bad? Storage Tips, Precautions, and More

Propane is commonly used for cooking, heating, and fuel for engines like forklifts, fleet vehicles, and buses. It’s one of the most frequently used gases in the US. A recent survey states that more than 10% of households use propane gas and propane heating in their homes.

But does propane go bad? Compared to gasoline, diesel, and most other types of fuels, propane actually doesn’t have an expiration date. As long as it’s safely stored, you can use it at its full potency 10, 20, or even 30 years down the line. The only limiting factor is the propane tank itself.

In this post, we’ll show you how to safely and properly maintain and store your propane tank, along with other important information you need to know when using this natural gas.

What Is Propane?

Propane, also known as Liquefied Petroleum Gas (LPG), is an alternative fuel that comes from the byproduct of refined petroleum and processed natural gas.

It’s often used for both industrial and agricultural purposes, along with homes and businesses for heating, cooking, and more. It’s also used as an internal combustion engine fuel for cars, buses, pumps, fleet vehicles, and the like.

It’s commonly stored in steel vessels ranging from small barbeque gas bottles to large gas cylinders and storage tanks.

Propane is usually found in natural gas and oil wells in combination with several types of hydrocarbons. It’s extracted using a distillation tower from heated crude oil. It’s then pressurized and securely stored in tanks and cylinders.

Like most gasses and fuels, propane is extremely flammable and needs to be used with care.

Why Is Propane So Popular?

Propane is one of the most popular alternative fuel in the US and all over the world because of the following reasons:

  • It’s one of the cleanest burning fossil fuel available as it doesn’t have greenhouse emissions.
  • It takes up less space than regular oil tanks.
  • It’s quite efficient due to its high BTU rating.
  • It can be used in off-grid applications (camping, RV trips, etc.)
  • It’s portable and can be installed almost anywhere.
  • It may significantly lower your energy bill, especially if used as a heating system.
  • It has multiple functions.
  • It’s relatively cost-effective.
  • It’s insoluble in water and completely non-toxic.
  • It has a long shelf life as it doesn’t go bad.

Another great thing about propane is that it can be stored in temperatures as high as 120°F and as low as -40°F, making it quite easy to store.

Does Propane Go Bad?

One of the best things about propane gas is that it never goes bad. It has an indefinite shelf-life, which is what makes it so desirable among homeowners and businesses.

The only thing that ‘expires’ is the gas bottle itself.

While it’s true that propane doesn’t degrade over time, cylinders and tanks don’t have the same luxury. Most propane bottles and tanks in the US have a 12 to 15-year shelf life depending on the bottle’s quality and capacity rating.

If stored properly, the propane’s container and valve can last up to 30 years without the need to replace or dispose of it.

Gas bottles and tanks need to be inspected every eight to ten years to guarantee the safety of those who use them.

The fuel stored inside the tank doesn’t degrade or deteriorate no matter the season, weather, or time. Therefore, as long as the bottle is stored properly, you’ll be able to use it for an indefinite amount of time.

How Do You Properly Store Propane Tanks?

To fully reap the benefits and longevity of your propane tank, make sure to follow these propane storage tips:

  • Don’t store your tank in direct sunlight.
  • Always keep your tank upright. Avoid storing your tank on its side or upside down.
  • Avoid storing your propane tank in your car, garage, basement, or tent. Keep it outside in a shaded or cool ventilated area, instead.
  • Make sure to disconnect the propane tank from the grill, heater, or any other equipment if it’s not in use.
  • Avoid storing your tank in environments that exceed 120°F.
  • During winter, cover your tank with a plastic tarp to prevent ice build-up.
  • Avoid storing your tank in damp areas with excessive moisture as it may cause it to rust.

Precautions to Take When Using and Storing Propane Tanks

In order to avoid fire damage and accidents, keep these tips in mind:

  • If you have more than one propane tank, don’t keep them adjacent to each other. Keep a distance of at least ten feet in between each of your propane tanks.
  • If a propane tank has obvious damage (dents, rust, peeling paint), it’s best to either replace it or discard it. Damaged tanks have a higher risk of leakage.
  • Tightly close the tank’s valve whenever it’s not in use.
  • Have a qualified propane service technician connect your propane tank to long-term house appliances such as heaters, refrigerators, stoves, and the like.
  • Make sure you have fire extinguishers within reach if you own several tanks of propane.
  • Periodically check the cylinder collar date to make sure it’s not past its requalification date.
  • Keep your propane cylinders away from flammable or combustible materials.
  • Install propane gas detectors and carbon monoxide alarms as an extra safety measure, so you’re immediately alerted if the tank has leakage.

If you no longer need your tank, contact your local propane supplier to safely dispose of or recycle it. Most recycling centers don’t accept propane tanks because they might be hazardous as they may still contain propane.

Final Thoughts

Compared to most auto-fuels, propane doesn’t ever go bad. Regardless, it’s important to keep in mind that the tank itself may deteriorate and ‘expire’ over time. Therefore, propane tanks need to be re-inspected and recertified every 10 years for your own safety.

Properly storing your propane tank is just as important as using it. Never keep a propane tank inside your home; instead, store it in a ventilated area and away from direct sunlight.