What type of burger includes only wheat and sulphites among its allergens?

The Impossible Burger is crafted to closely mimic the taste and texture of traditional beef but is made from plant-based ingredients. Among its ingredients, the only allergens specifically noted are wheat and sulphites. Wheat is a common allergen found in various food products, and sulphites are often used as preservatives in many processed foods.

In contrast, the other burgers listed may contain a wider array of allergens. For example, the Cajun chicken sandwich could include allergens from chicken as well as gluten from bread and various spices. The Cheddar bacon burger typically has dairy from the cheese and potentially additional allergens from the bacon. The Feenie burger, known for its combination of toppings, likely includes other allergens as well, such as dairy or gluten.

Therefore, the unique formulation of the Impossible Burger, which is designed to be free from common allergens like dairy and eggs, is why it is specifically identified as containing only wheat and sulphites among its allergens.