How to Purge BHO Without a Vacuum

How to Purge BHO Without a Vacuum


How to Purge BHO Without a Vacuum: A Comprehensive Guide​


Butane Hash Oil (BHO) is a popular cannabis concentrate that has gained widespread attention due to its potency and versatility. However, the process of making BHO can be dangerous, especially when it comes to purging the butane. In this article, we will explore how to purge BHO without a vacuum, providing a safe and effective alternative for those who cannot access vacuum purging equipment.

What is BHO?​

BHO is a type of cannabis concentrate that is made by extracting the active compounds from the cannabis plant using butane as a solvent. The resulting mixture is then heated to remove the butane, leaving behind a highly potent and flavorful concentrate. BHO can be consumed in a variety of ways, including dabbing, vaporizing, and smoking.

Why is Purging Important?​

Purging is the process of removing the remaining butane from the BHO. This is an essential step in the production of BHO, as butane is a highly volatile and flammable substance that can pose a serious risk to both the producer and the consumer. In addition, incomplete purging can result in a weaker and less flavorful concentrate.

How to Purge BHO Without a Vacuum​

While vacuum purging is the most common and effective method for purging BHO, it is not always accessible to home producers. Fortunately, there are alternative methods for purging BHO that do not require a vacuum. Here are some steps to follow:

1. Prepare Your Workspace​

Before you begin, make sure you have a clean and well-ventilated workspace. This will help to minimize the risk of fire or explosion. It is also important to have all the necessary equipment on hand, including a heat source, a thermometer, and a scraper.

2. Heat the BHO​

Place the BHO in a shallow dish and heat it gently using a heat source such as a hot plate or a double boiler. The ideal temperature for purging BHO is between 100°F and 120°F (38°C and 49°C). Use a thermometer to monitor the temperature and ensure it stays within this range.

3. Observe the BHO​

As the BHO heats up, you will notice that it begins to bubble and release gas. This is the butane evaporating from the concentrate. Continue to observe the BHO and scrape off any remaining butane as it rises to the surface.

4. Cool the BHO​

Once the majority of the butane has been purged, allow the BHO to cool slightly. This will help to solidify the concentrate and make it easier to handle.

5. Repeat the Process​

Repeat the heating and cooling process several times to ensure that all the butane has been removed. This may take several hours, depending on the amount of BHO you are purging.

6. Store the BHO​

Once the BHO has been fully purged, it is important to store it in a safe and airtight container. This will help to preserve its potency and flavor, as well as prevent any contamination.

Tips for Successful BHO Purging​

Here are some tips to help ensure a successful BHO purge:
  • Use a high-quality digital thermometer to monitor the temperature of the BHO.
  • Work in a well-ventilated area to minimize the risk of fire or explosion.
  • Use a scraper to remove any remaining butane as it rises to the surface.
  • Be patient and repeat the heating and cooling process several times to ensure complete purging.
  • Store the BHO in a safe and airtight container to preserve its potency and flavor.


Purging BHO without a vacuum is possible, but it requires careful attention to detail and a commitment to safety. By following the steps outlined in this article, you can ensure that your BHO is purged effectively and safely, without the need for expensive vacuum equipment. Remember to always prioritize safety, work in a well-ventilated area, and be patient throughout the purging process. With these tips in mind, you can enjoy high-quality, flavorful, and potent BHO that is free from harmful contaminants.
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