Four Sigmatic is a Finnish-American company specializing in functional mushroom products including popular mushroom coffee blends. 

Four Sigmatic was founded by Tero Isokauppila in 2012. Tero grew up in Finland on a family farm where he foraged for mushrooms.

Functional mushrooms have health benefits. Chaga, Cordyceps, and Lion's Mane contain nutritional content. These nutrients have health benefits from supporting the immune system to lowering cholesterol.

Tero is enthusiastic about medicinal mushrooms. He is dedicated to educating people and helping them experience the health benefits of functional mushrooms.

He has utilized his knowledge of chemistry and nutrition to pursue his enthusiasm for health and well-being. This led Tero to start his own business producing functional foods, earning millions.

This guide explores Four Sigmatic functional mushroom products, their health benefits and everything you need to know about them.

Plus, find out how we can help you grow your first million dollar brand in about a year, absolutely FREE.

What is Four Sigmatic?

Four Sigmatic is a Finnish-American company specializing in functional mushroom-based products such as coffee, elixirs and tea. The company was founded by Tero Isokauppila in 2012 and is based in Los Angeles, California.

The company uses natural, high-quality sustainably sourced ingredients. Their products often contain adaptogenic mushrooms such as Reishi, Lion's Mane and Chaga. These mushrooms have health benefits such as reducing stress and boosting the immune system. 

Four Sigmatic products are marketed towards health-conscious individuals looking for an alternative to traditional coffee or tea that provides added health benefits.

Four Sigmatic offers functional products that enhance health and well-being, including coffee products, proteins, supplements, beauty products and other superfood products.

Who is Tero Isokauppila?

Born in Finland, Tero Isokauppila is the 13th generation to work on the family farm. His upbringing was greatly influenced by the natural environment.

Tero was exposed to the outdoors at an early age gathering mushrooms and berries with his mother. His mother taught anatomy and physiology to nurses, enabling Tero to learn about the human body and medicinal plants.

Tero's father was an expert in soil and crop management, and he had a special passion for mushrooms. As Tero stated in an interview, ’’Mom was Mother Nature, and Dad was science and health."

Why is it called Four Sigmatic?

Sigma refers to how different food is from normal. Four Sigmatic foods are more nutritious than staple foods. They are better than health foods. Only a select few foods can be classified as Four Sigmatic, as not many of them meet the criteria.

Four Sigmatic represents the company's focus on functional mushrooms and their potential to promote balance and well-being.

Who started Four Sigmatic?

Tero founded Four Sigmatic in 2012 to make mushrooms a more accepted part of everyday life. The company strives to increase the quality of everyday foods and commodities by taking advantage of mushrooms' special properties.

Isokauppila grew up on a farm in Finland where his family grew and harvested mushrooms for food and medicine. He studied chemistry, nutrition, and natural health at various universities.

In 2015, Four Sigmatic moved to the United States. Initially, Americans did not like the brand. Tero realized that he had failed to include the standard wellness marketing element.

Along with a team of entrepreneurs, Isokauppila started Four Sigmatic with the goal of creating high-quality mushroom-based products that were both convenient and delicious. 

Today, Four Sigmatic has become a popular and well-respected brand in the health and wellness industry, with a wide range of mushroom-based products available in over 65 countries.

How much is Four Sigmatic worth?

Its valuation is undisclosed, but Four Sigmatic’s annual revenues are estimated at $61.7 million.


What is Four Sigmatic Mushroom Coffee?

Four Sigmatic Mushroom Coffee is a coffee blend containing organic coffee beans and functional mushrooms, such as Lion's Mane and Chaga. The coffee is designed to provide the benefits of both coffee and mushrooms in a convenient and easy-to-use product. 

Mushrooms enhance the taste and provide various health benefits, such as boosting the immune system and improving mental clarity.

Four Sigmatic Mushroom Coffee comes in a variety of blends, including dark roast, medium roast and decaf. It can be prepared using a traditional coffee maker or a French press.

Who owns Four Sigmatic?

Tero Isokauppila is the CEO and founder of Four Sigmatic. It was founded in 2012 to create nutrient-dense, functional foods and share the benefits of mushrooms with the world. Four Sigmatic launched its first product on Amazon in 2015: mushroom-infused coffee.

Where is Four Sigmatic manufactured?

Four Sigmatic sources its mushrooms from China to ensure quality and safety. China is one of the world's leading mushroom cultivators. More than any other region, China has grown and used functional mushrooms for a very long time.

The product is manufactured in the US. The quality control standards applied to each batch must be superior before it reaches you.

What are the benefits of drinking Four Sigmatic Mushroom Coffee?

Four Sigmatic Mushroom Coffee contains functional mushrooms such as Lion's Mane and Chaga, which provide various health benefits such as:

  • Boosts cognitive function: Lion's Mane mushroom supports cognitive function, and improves memory and focus, making it a popular choice for those looking to enhance their mental clarity.
  • Boosts immune system: Chaga mushroom is known for its antioxidant properties, which may support the immune system and protect against inflammation and oxidative stress.
  • Increases energy and stamina: The caffeine in the coffee may provide a natural energy boost, while the mushrooms can reduce fatigue and increase endurance.
  • Promotes overall well-being: The combination of coffee and functional mushrooms supports overall well-being, reducing stress and improving mood.
  • Provides a healthy alternative to traditional coffee: Four Sigmatic Mushroom Coffee is organic, fair trade and low in acidity, making it convenient for health-conscious people looking for an alternative that provides added benefits.

What types of mushrooms are used in Four Sigmatic Mushroom Coffee? 

Four Sigmatic Mushroom Coffee contains two types of functional mushrooms. Lion's Mane and Chaga:

  • Lion's Mane is a mushroom used in traditional medicine to support cognitive function and memory. Lion's Mane may promote nerve growth and repair in the brain, leading to improved cognitive function.
  • The Chaga mushroom is known for its antioxidant and immune-boosting effects. Chaga reduces inflammation, protects against oxidative stress and supports the immune system.

Four Sigmatic offers products containing a variety of functional mushrooms, including Reishi, Cordyceps, and Shiitake. These functional mushroom products have a wide range of health benefits.

How does Four Sigmatic Mushroom Coffee taste?

Four Sigmatic Mushroom Coffee tastes like regular coffee but with a subtle earthy flavor from functional mushrooms. The taste and flavor can vary based on the specific blend of coffee and mushrooms used, as well as personal taste preferences.

Some people describe Four Sigmatic Mushroom Coffee's taste as slightly nutty, with hints of chocolate or vanilla. Others describe the taste as earthy or bitter, similar to other mushroom-based products.

It's recommended to start with a small amount and gradually increase as desired to find the perfect taste for your personal preference.

What is the caffeine content of Four Sigmatic Mushroom Coffee?

Four Sigmatic Mushroom Coffee's caffeine content depends on the specific blend of coffee used and the amount per serving. It contains about 50-60 mg of caffeine per serving, which is roughly equivalent to the caffeine content of a half cup of regular coffee.

The caffeine content is lower than regular coffee, which contains 95 mg per cup. This may be an ideal option for those sensitive to caffeine or looking for a coffee alternative that provides a moderate caffeine boost.

What are the nutrition facts of Four Sigmatic Mushroom Coffee?

Four Sigmatic Mushroom Coffee is low in calories and contains minimal fat, carbohydrates and protein. Here are the nutrition facts about Four Sigmatic Mushroom Coffee made with hot water:

  • Calories: 5-10
  • Fat: 0g
  • Saturated fat: 0g
  • Trans fat: 0g
  • Cholesterol: 0 mg
  • Sodium: 0 mg
  • Total carbohydrates: 1-2g
  • Dietary fiber: 0g
  • Total sugar: 0g
  • Added sugars: 0g
  • Protein: 0g

It's worth noting that the nutritional content may vary depending on any additional ingredients added to the coffee, such as sweeteners or milk. 

How do you prepare Four Sigmatic Mushroom Coffee?

  1. Start by heating water: Boil water, and heat it to your desired temperature for brewing coffee. The recommended temperature is around 195°F to 205°F (90°C to 96°C).
  2. Measure the coffee: Use the recommended amount of Four Sigmatic Mushroom Coffee per serving, 1 packet or 1 teaspoon. You can adjust the amount based on your preference.
  3. Brew the coffee: Place the measured coffee in a cup. Slowly pour the hot water over the coffee and stir gently to ensure the coffee and mushrooms are well combined.
  4. Steep the coffee: Allow the coffee to steep for a few minutes, 3-5 minutes, to extract the flavors and compounds from the coffee and mushrooms.
  5. Strain and enjoy: If you use a French press or another brewing method that requires straining, pour the brewed coffee through a filter into your serving cup.
  6. Optional additions: If desired, you can add sweeteners like honey or stevia, as well as milk or creamer, to customize your coffee's taste. Stir well to incorporate any additional ingredients.

Remember to follow the specific instructions provided on the packaging of your Four Sigmatic Mushroom Coffee product, as the recommended brewing process may vary depending on the blend.

Does Four Sigmatic Mushroom Coffee contain any other ingredients besides mushrooms?

  • Organic Coffee: Four Sigmatic Mushroom Coffee starts with organic coffee beans, which provide the base for coffee flavor.
  • Functional Mushrooms: Four Sigmatic Mushroom Coffee contains functional mushrooms such as Lion's Mane and Chaga. 
  • Natural Flavorings: Some blends may include natural flavorings to enhance taste and aroma. These can include flavors like chocolate, vanilla, or spices.
  • Sweeteners: Natural sweeteners like stevia or monk fruit extract add a touch of sweetness without adding calories.

What are the potential health risks associated with drinking Four Sigmatic Mushroom Coffee?

Four Sigmatic may not be for everyone, particularly if you have:

  • Allergies: Some individuals may be allergic to certain mushrooms. If you have allergies to mushrooms, avoid Four Sigmatic Mushroom Coffee or other mushroom-based products.
  • Sensitivity to mushrooms: Some people experience gastrointestinal discomfort or allergic-like reactions when consuming certain mushrooms.
  • Caffeine sensitivity: Four Sigmatic Mushroom Coffee contains caffeine, though in smaller amounts than regular coffee. If you are sensitive to caffeine or have underlying health conditions that can be affected by caffeine consumption, it's recommended to moderate your intake. You can also choose a decaffeinated version of Four Sigmatic Mushroom Coffee.
  • Drug interactions: If you are taking medications or have underlying health conditions, it's good to consult with a healthcare professional before introducing new supplements or dietary changes. Mushrooms such as Lion's Mane, may interact with certain medications for specific health conditions.

How much does Four Sigmatic Mushroom Coffee cost?

Coffee lovers can satisfy their cravings with Four Stigmatic's selection of mushroom-based coffees, available in light, dark, and decaffeinated versions. Customers can find a range of different blends to support their immune systems and well-being. Options include Think with lion's mane and chaga, Perform with cordyceps, Chill Decaf with reishi, and more.

Customers can purchase a two pack of 12-serving bags of coffee for $32, as well as instant coffee boxes and coffee pods. However, the catch is that Four Sigmatic roasts usually contain 150 mg per serving or less. Some roasts contain more but rarely exceed 500 mg.

Are Four Sigmatic products safe?

Four Sigmatic have a detailed quality control which includes:

  • Sourcing from trusted partners
  • Safe and proven in-house recipes
  • Potency testing
  • Allergen testing
  • Obtaining certifications from suppliers, manufacturers and third-party labs

Is Four Sigmatic tested for mold?

Yes! After production, Four Sigmatic sends every batch to a third-party laboratory for safety testing. The lab ensures all products meet strict requirements concerning mold, bacteria, heavy metals, yeasts, mycotoxins or pesticides.


Four Sigmatic is a Finnish-American company specializing in functional mushroom-based products such as coffee, elixirs and tea. 

Tero Isokauppila is the Founder and CEO of Four Sigmatic. He started the company in 2012 to create nutrient-dense, functional foods. His industry expertise, sheer determination and unyielding drive propelled this business owner to eight figures.

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