
Burger King's Impossible Whopper, introduced in 2019, is a plant-based burger patty made in collaboration with Impossible Foods. The patty is made using an ingredient called soy leghemoglobin, which is a protein found in plants that carry heme, an iron-containing molecule. While the patty does not contain gluten, wheat protein, soy, nuts, or dairy, there is no official answer from Burger King regarding the presence of mushrooms in the ingredients. Some sources suggest that mushrooms are not a noted FDA allergen, while others claim that Impossible Foods' recipe does not include mushrooms.
| Characteristics | Values |
|---|---|
| Type of food | Burger |
| Main ingredients | Plant-based patty, tomatoes, lettuce, mayonnaise, pickles, ketchup, onions, bun |
| Dietary suitability | Vegetarian, vegan (without cheese and mayonnaise) |
| Gluten-free | Yes |
| Contains mushrooms | No, but there is a risk of cross-contamination |
| Price | $5.69 |
| Add-ons | Cheese |
| Other names | Impossible Burger |
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What You'll Learn

Burger King's Impossible Whopper is a plant-based burger
The Impossible Whopper features a flame-grilled, plant-based patty made by Impossible Foods. It is topped with lettuce, tomatoes, white onions, pickles, ketchup, and creamy mayo. The patty itself is made from a variety of ingredients, including water, soy derivatives, commercially extracted proteins, added flavors, thickening and binding agents, and fortification. While the full list of ingredients is not publicly available, it is known that the patty does not contain gluten, soy, nuts, or dairy, making it a good option for people with allergies or intolerances.
There has been some debate about whether the Impossible Whopper patty contains mushrooms. While Impossible Foods has stated that their recipe does not include mushrooms, Burger King has not provided a clear answer, only stating that mushrooms are not a noted FDA allergen, so they are not required to disclose their presence in the ingredients. However, cross-contamination with meat products during preparation is a concern, and customers with allergies or dietary restrictions may want to consider this.
The Impossible Whopper has received mixed reactions from customers. Some praise the taste and texture, which closely resemble those of a traditional Whopper, while others find it less salty and lacking the chargrilled flavor of the original. The burger is also more affordable than a typical restaurant burger, with a suggested price of $5.69, although prices may vary by location.
The introduction of the Impossible Whopper reflects a growing trend in the food industry to offer more vegan and vegetarian options to meet consumer demands. Burger King is the first fast-food chain to offer a plant-based burger on a nationwide scale in the United States, and its success may influence other restaurants and food companies to expand their plant-based offerings.
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The patty is made by Impossible Foods and does not contain mushrooms
The Impossible Whopper is Burger King's plant-based burger, made in collaboration with Impossible Foods. The burger patty is created by Impossible Foods and does not contain mushrooms.
Impossible Foods is a company that creates plant-based meat alternatives. Their products contain soy derivatives, commercially extracted proteins, added flavours, thickening and binding agents, added fortification, and other ingredients that are typically used in mass food production. The Impossible Whopper patty is made using an ingredient called soy leghemoglobin, which is a protein found in plants that carry heme, an iron-containing molecule essential for life.
While the Impossible Whopper patty itself does not contain mushrooms, there is a possibility of cross-contamination during preparation. Burger King has described its kitchen environment as an "open kitchen," and they cannot guarantee zero cross-contamination with meat products or other ingredients.
The Impossible Whopper is marketed as a vegetarian option, but it is important to note that it is cooked in the same broilers as meat products, and the company has been criticized for not providing clear allergen information. The burger is also free of gluten, soy, nuts, and dairy, making it suitable for individuals with certain food allergies and intolerances.
The Impossible Whopper was introduced in August 2019 and is the first plant-based burger offered by a fast-food chain on a nationwide scale in the United States. It has received praise from enthusiasts for its taste and texture, resembling that of a traditional Whopper.
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The burger is gluten-free, but cross-contamination is likely
While Burger King has not provided an official statement on whether or not their Impossible Whopper is gluten-free, the burger patty itself is made without gluten. The Impossible Whopper is a plant-based burger, with a patty provided by Impossible Foods. The patty is vegan and does not contain gluten, soy, nuts, or dairy, making it a good option for people with food allergies.
However, the issue of cross-contamination must be considered. Burger King has stated that their Impossible Whoppers are cooked in the same broilers as their meat products, making cross-contamination incredibly likely. This means that even though the Impossible Whopper patty is gluten-free, it may come into contact with gluten during the cooking process.
If you have a gluten intolerance or allergy, it is important to be cautious when ordering the Impossible Whopper. You may want to request that Burger King uses a different preparation method for your burger, such as cooking the patty in the oven. While they cannot guarantee zero cross-contamination, taking these precautions can help reduce the risk.
Additionally, other items on the Burger King menu may be more suitable for those with gluten sensitivities. Some gluten-free options include the Whopper Jr., the BBQ Bacon Whopper, the Original Chicken Sandwich, the Crispy Chicken Sandwich, and the Garden Fresh Salad. It is always a good idea to consult the allergen information provided by Burger King before placing your order.
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$19.99

The Whopper is not vegan as it contains mayonnaise and cheese
The Impossible Whopper at Burger King is a plant-based burger that is not vegan because it contains mayonnaise and cheese. The burger is made with a vegan patty from Impossible Foods and can be ordered without cheese or mayonnaise to make it completely vegan. The Impossible Whopper is now available nationwide in the United States and is a safe option for those with celiac disease or gluten intolerance as it does not contain gluten.
The Impossible Whopper is part of a growing trend of restaurants and food companies offering more vegan and vegetarian options to meet consumer demand. The burger is also free of soy, nuts, and dairy, making it a good choice for people with food allergies. However, as with many fast-food restaurants, cross-contamination is a concern for vegetarians and vegans. Burger King's Impossible Whoppers are cooked in the same broilers as their meat counterparts, making cross-contamination likely.
The Impossible Whopper features a flame-grilled, plant-based patty topped with lettuce, tomatoes, white onions, pickles, ketchup, and creamy mayonnaise. The burger has a bean-like aroma, is less salty than a traditional Whopper, and lacks the chargrilled flavor that made the original so popular. The Impossible patty contains several ingredients that are not typically found in home kitchens, including water as the first ingredient, soy derivatives, commercially extracted proteins, added flavors, thickening and binding agents, and added fortification.
While the Impossible Whopper patty itself does not contain mushrooms, Burger King has not provided a clear answer on whether mushrooms are included in the ingredients. One customer with a mushroom allergy reported that Burger King stated that "mushrooms are not a noted FDA allergen, so we are not required to disclose if they are part of the ingredients." However, Impossible Foods, the company that makes the Impossible Whopper patty, has stated that they do not include mushrooms in their recipe but recommends checking with individual locations about mushroom ingredients and cross-contamination risks.
In conclusion, while the Impossible Whopper at Burger King is a plant-based burger, it is not vegan in its standard form due to the inclusion of mayonnaise and cheese. Customers can order it without these ingredients to make it completely vegan. The burger is a good option for those with gluten intolerance and food allergies, but cross-contamination with meat products is a concern for vegetarians and vegans. The Impossible Whopper patty contains various ingredients not typically found in home kitchens, and while it does not include mushrooms, individual Burger King locations may have different practices regarding mushroom ingredients.
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The Impossible Whopper costs $5.69
The Impossible Whopper, Burger King's plant-based burger, costs $5.69. The burger is made with a vegan patty from Impossible Foods and can be ordered without cheese or mayonnaise to make it completely vegan. The Impossible Whopper is free of gluten, soy, nuts, and dairy, making it a good option for people with food allergies or intolerances.
While the burger itself does not contain mushrooms, there may be a risk of cross-contamination with mushroom ingredients during preparation. Burger King has stated that "mushrooms are not a noted FDA allergen, so we are not required to disclose if they are part of the ingredients." However, Impossible Foods has recommended checking with individual locations about their use of mushroom ingredients and the potential for cross-contamination.
The Impossible Whopper is part of a growing trend of restaurants and food companies offering more vegan and vegetarian options to meet consumer demands. The burger promises to satisfy diners without making them miss the meat found in traditional Whoppers. It is important to note that Impossible Whoppers are cooked in the same broilers as meat products, so cross-contamination is likely.
The $5.69 price point for the Impossible Whopper is relatively affordable compared to other restaurant burgers. However, some customers have expressed concerns about the cost, especially considering the lower resource intensity of producing plant-based burgers. As the demand for plant-based options increases, it is expected that prices will become more competitive, and the market for meat alternatives will expand.
Overall, the Impossible Whopper at $5.69 offers a reasonably priced, plant-based alternative to traditional burgers, catering to those with dietary restrictions or preferences.
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Frequently asked questions
Yes, mushrooms are listed as one of the ingredients in the Impossible Whopper.
The Impossible Whopper patty is plant-based and made by Impossible Foods. It contains textured vegetable protein, wheat gluten, and various vegetables, including water chestnuts, onions, carrots, and peppers. The burger is topped with lettuce, tomatoes, white onions, pickles, ketchup, and mayonnaise.
The Impossible Whopper can be made vegan by ordering it without cheese or mayonnaise. The patty itself is vegan and plant-based, containing no gluten, soy, nuts, or dairy.
Some people say that the Impossible Whopper tastes similar to an overdone beef burger with a hint of burnt "flame-broiled-ness." It is less salty than the original Whopper and lacks the chargrilled flavor, but it is still close to eating one of Burger King's meat-based burgers.
























