Can You Use a Large Propane Tank on a Portable Blackstone Griddle?

Propane tanks are a popular fuel source for outdoor cooking, and the Blackstone griddle is no exception. This versatile outdoor cooking equipment has gained much popularity in recent years due to its compact size and ability to cook various dishes simultaneously. However, this question must have come to your mind: Can You Use a Large Propane Tank on a Portable Blackstone Griddle?

Can You Use a Large Propane Tank on a Portable Blackstone Griddle

The answer to this question is yes, you can use a large propane tank on portable Blackstone griddle. Many users prefer using a larger propane tank as it can last longer and save them the hassle of constantly refilling smaller tanks. Before you connect a large gas cylinder to your portable propane griddle, there are a few crucial factors that you should take into consideration.

This blog post explores the safety precautions, steps to connect the propane tank, advantages and disadvantages, and maintenance tips for using large propane tanks on a portable Blackstone griddle.

Can you use a large propane tank on a portable Blackstone griddle?

A large propane tank on a portable Blackstone griddle can offer convenience and extended grilling time. Ensuring your safety should be of utmost importance. Therefore, following safety guidelines and taking necessary precautions to mitigate potential hazards is crucial.

Advantages of using a large propane tank

  • Extended cooking time: Large tanks allow for extended cooking time, making it convenient for longer outdoor gatherings or events.
  • Cost-effective: Using a larger propane tank can save you money in the long run, as you won’t have to refill smaller tanks constantly.
  • Versatility: With a larger propane tank, you can use it for multiple outdoor cooking equipment, including your Blackstone griddle.

Disadvantages of using a large propane tank

  • Heavy and bulky: Large propane tanks are heavier and bulkier than smaller ones, making them difficult to transport and store.
  • Initial cost: Investing in a larger propane tank may involve a higher initial cost than smaller tanks. However, the long-term benefits and efficiency make it a worthwhile choice.

Safety Precautions

Before using a large propane tank, it’s crucial to prioritize safety. Keep the following safety precautions in mind:

  • Ensure proper storage and transportation of the propane tank to minimize the potential for leaks or accidents.
  • Handling the propane tank carefully, including avoiding rough handling, keeping it upright, and checking for any signs of damage or wear.

What size in the propane fitting on a Blackstone?

The propane fitting on a Blackstone griddle is typically a standard 3/8-inch flare fitting. This means that any propane tank, whether small or large, should have the same size fitting and can be connected to your griddle without any issues.

How do you connect the propane tank with the Blackstone griddle?

To connect the propane tank to your Blackstone griddle, follow these steps:

  1. Ensure that both the griddle and propane tank are turned off.
  2. Remove the protective cap from the valve of the propane tank.
  3. Attach the regulator hose to the propane tank’s valve, ensuring a secure connection.
  4. Open the propane tank’s valve slowly to allow gas flow.
  5. You can apply soapy water to the connector to check for gas leaks. If you notice bubbles forming, it could indicate a leak. It is essential to address any leaks before proceeding further.

You can also get help from this video for connecting the propane tank with your portable Blackstone griddle.

What is the 80 20 rule for propane tanks?

The 80/20 rule for propane tanks specifies the maximum fill level recommended. It suggests you should not fill a propane tank more than 80% of its capacity, leaving at least 20% space. This allows room for gas expansion and prevents potential hazards caused by overfilling.

What is the difference between a 20lb and 30lb propane tank?

The main difference between 20- and 30-lb propane tanks is their size and capacity. A 20 pound propane tank can hold up to 4.7 gallons of propane, while a 30-pound tank can hold up to 7 gallons. This means the 30-pound tank propane will last longer and provide longer cooking time than the 20-pound.

How do you know when a 20 lb propane tank is empty?

There are multiple methods to determine when a 20lb propane tank has been depleted:

  • Check the weight: A full 20lb propane tank weighs around 38 pounds, so if your tank feels significantly lighter than that, it may be close to empty.
  • Use a gauge: Certain propane tanks have integrated gauges indicating the remaining propane level. If your tank has a gauge, you can quickly determine when it’s empty.
  • Listen for a hissing sound: When a propane tank is nearly empty, a hissing sound may come from the valve as the gas pressure decreases.

What is the shelf life of a 20 lb propane tank?

A 20lb propane tank has an average shelf life of around 12 years. Nevertheless, these factors can differ based on variables like the manufacturer and storage conditions. It’s recommended to have your propane tank inspected and recertified every 5-10 years to ensure its safety and prolong its lifespan.

Tips for maintaining a large propane tank

For optimal performance and longevity of your portable Blackstone griddle while using a large propane tank, adhere to these maintenance tips:

  • Regularly clean the griddle’s cooking surface and remove grease or food debris.
  • Thoroughly examine the propane tank, regulator, and adapter hose for any indications of damage or wear and tear, and promptly replace them if necessary.
  • Properly dispose of empty or expired propane tanks according to local regulations.

What should I do if I suspect a gas leak from my propane tank?

If you suspect a gas leak coming from your propane tank, follow the steps outlined below:

  1. Ensure that all appliances are powered off using the propane source.
  2. Carefully close the valve on the propane tank to ensure safe shutdown.
  3. In an emergency, ensure your safety by promptly evacuating the area. Then, contact your propane supplier or emergency services for immediate assistance.
  4. Do not try to fix the leak yourself, as it can be dangerous.

Regularly checking for gas leaks and addressing them promptly is crucial for safely using your portable Blackstone griddle. Always prioritize safety and follow proper procedures, mainly when dealing with big propane tank. By providing the necessary care and maintenance, your Blackstone griddle can continue to delight you with delectable meals for many years.


A large propane tank on a portable Blackstone griddle can enhance your grilling experience by providing extended cooking time. However, it’s essential to prioritize safety, follow proper connection procedures, and conduct regular maintenance to ensure safe and efficient usage. While connecting your griddle to a larger propane tank always follow safety precautions to enjoy a seamless and enjoyable grilling experience. Happy grilling!


Does it matter what size propane tank you use?   

No, it doesn’t matter what size propane tank you use as long as it’s compatible with your Blackstone griddle and the necessary safety precautions are taken.

What time of year is cheapest to fill propane tank?   

The cheapest time of year to fill your propane tank is typically during the summer months when demand for propane is lower. However, prices may vary depending on location and current market conditions.

Can I leave my propane tank outside in winter?  

Yes, you can leave your propane tank outside in winter. Still, covering or storing it in a sheltered area is recommended to protect it from extreme temperatures and harsh weather conditions.

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