How To Make E85 At Home

Are you tired of relying on gasoline to fuel your car? Do you want to take control of your fuel source and reduce your carbon footprint? Making e85 at home is a great solution for those who want to save money and reduce their impact on the environment.

With the right equipment and materials, you can produce a renewable, high-octane fuel that is compatible with most flex-fuel vehicles. To start, you’ll need to gather the necessary equipment and materials. This includes a fermenter, distillation apparatus, feedstock, yeast, and enzymes.

The fermentation process involves converting the sugars in the feedstock into alcohol, which is then distilled to produce e85. With a little bit of know-how and some patience, you can produce your own e85 at home and take control of your fuel source.

Gather the necessary equipment and materials

Now that you’ve decided to make e85 at home, you’ll need to gather all the necessary equipment and materials for DIY ethanol production.

The most important piece of equipment you’ll need is a still, which is used to distill the ethanol from the fermented mixture. You can either purchase a still or make one yourself using basic materials like copper tubing, a large pot, and a condenser.

In addition to the still, you’ll also need a fermentation tank, which is used to mix the corn or other organic material with water and yeast to produce alcohol. Other necessary materials include a thermometer, hydrometer, and pH meter to monitor the fermentation process, as well as safety equipment like gloves and goggles.

With these tools, you can start your homemade fuel production journey and take control of your own fuel supply.

Choose the right type of feedstock

Selecting the appropriate feedstock is key to producing high-quality E85 fuel. The two most common feedstocks used for producing E85 are corn and sugarcane.

Corn is the most widely used feedstock in the United States, while sugarcane is commonly used in Brazil. Corn has several pros and cons as a feedstock for E85 production. It’s abundant and readily available in the United States, making it a cost-effective option. However, the production of corn-based E85 has a significant environmental impact as it requires large amounts of water, fertilizers, and pesticides.

Sugarcane, on the other hand, has a lower environmental impact and a higher energy output per acre, making it a more sustainable option. However, it’s not as widely available as corn in some regions.

Ultimately, the choice of feedstock will depend on factors such as availability, cost, and environmental impact.

Fermentation process

Choosing the appropriate feedstock is only the first step in producing high-quality E85 fuel. The fermentation process is equally important as it converts the sugars in the feedstock into ethanol. To begin, the feedstock is mixed with water and yeast strains are added. It’s important to choose the right type of yeast for your specific feedstock since it can affect the quality and quantity of ethanol produced.

Once the yeast is added, the mixture is kept at a specific temperature to ensure optimal fermentation. The temperature can vary depending on the yeast strain and feedstock used, but it’s typically between 75-85°F. Temperature control is crucial during the fermentation process since too high or too low of a temperature can negatively impact the quality of the ethanol produced. By carefully monitoring and controlling the temperature, you can ensure that your E85 fuel will be high-quality and efficient.

Distillation process

To distill the fermented mixture, you’ll need to heat it up in a still until the ethanol evaporates and then condenses back into a liquid, leaving behind the remaining water and impurities.

There are different distillation techniques that you can use, each with its own advantages and disadvantages. One common technique is simple distillation, which involves heating the fermented mixture in a pot still and collecting the distilled ethanol in a separate container. While simple distillation is relatively easy to set up and use, it has a low alcohol concentration and can leave behind impurities.

Another technique is fractional distillation, which involves multiple distillations using a column still to separate the ethanol from the water and impurities. Fractional distillation yields a higher concentration of ethanol and produces a purer product, but requires more complex equipment and expertise.

Ultimately, the distillation technique you choose will depend on your resources and desired outcome.

Benefits of using e85

Using e85 as a fuel alternative can result in reduced emissions and lower costs for drivers. E85 is a blend of 85% ethanol and 15% gasoline, and it burns cleaner than pure gasoline. The production of e85 also generates less greenhouse gas emissions compared to traditional gasoline. This makes it an environmentally friendly option for drivers who want to reduce their carbon footprint.

In addition to being eco-friendly, e85 can also save drivers money. Ethanol is a domestically produced fuel, which means it’s often cheaper than imported oil. This can translate to lower fuel costs for drivers who choose to fill up with e85. Additionally, some states offer tax incentives to drivers who use alternative fuels like e85. This can further reduce the cost of using this fuel. Overall, e85 presents a cost-effective and eco-friendly alternative to traditional gasoline.


Congratulations! You’ve successfully learned how to make e85 at home. By following the steps outlined in this article, you can produce your own fuel that’s not only cheaper but also more environmentally friendly than traditional gasoline.

Remember, the key to making e85 is to gather the necessary equipment and materials, choose the right type of feedstock, and follow the fermentation and distillation process. It may take some trial and error to perfect your technique, but with patience and persistence, you can produce high-quality e85 that can power your vehicle.

By using e85, you can reduce your carbon footprint and contribute to a cleaner environment. Additionally, e85 is a renewable fuel source that can help reduce our dependence on foreign oil.

So why not give it a try and start making your own e85 today? You’ll be doing your part to create a more sustainable future.