Coffees
Proteins
Supplements
Instant Teas
NEW! Instant Coffee Lattes
Focus Cold Brew Ground Coffee
ENERGY
FOCUS
GROUND
Organic cold brew coffee powered by lion’s mane mushrooms. See results in as little as 7 days with a focus that tastes unbelievably delicious.
Pick your product: Cold Brew
Pack Size:
30% OFF of first order
20% OFF on recurring orders
Exclusive gifts along the way
Cancel Any Time
+100M Cups of Four Sigmatic Sold
60-day Money Back Guarantee
Ships Within One Business Day
How to use & taste
Mix 2 Tbsp coffee grounds per 8 fl. oz. of water and stir. Refrigerate for 24 hours and then strain out the grounds. Enjoy a dark roast with rich notes of dark chocolate.
Benefits
Enhanced focus, sustained energy without jitters, and a mood-boosting coffee experience you’ll love.
Ingredients
Organic dark roast Arabica coffee
Organic lion’s mane extract
Organic yacon juice powder
Frequently Asked Questions
Right away you should feel focused and more productive. After a few weeks you’ll start to notice that you are less likely to feel run down, or foggy. Functional mushrooms are safe to consume long-term and you’ll notice how much better you feel now if you try a cup of regular coffee after a month of your Think Cold Brew Coffee.
Under 125 mg per 8 oz cup, depending on how long you brew it for.
No! We proudly use USDA organic dark roast Honduran coffee in this coffee.
Mix 2 Tbsp coffee grounds per 8 fl. oz. of water and give it a stir. Refrigerate for 24 hrs and then strain out the grounds for a delicious better-for-you cold brew.
The main ingredient is coffee with a sidekick of lion’s mane. No, this product does not taste like mushrooms!
Nope! If you like sweetener in your coffee our team loves adding your choice of plant based milk.
Mental focus, productivity, concentration and energy! (And who doesn’t need more of that).
Cold brew coffee is a method of making coffee by steeping coarsely ground coffee in cold or room temperature water for an extended period, usually 12 to 24 hours. This process results in a smoother and less acidic coffee concentrate!
A dry and cool space, somewhere the coffee won’t get burnt by the sun!
Real Premium Coffee, Delicious Taste
Enhanced Focus
Clear brain fog fast with the #1 mushroom coffee. Organic coffee and lion’s mane mushrooms boost focus and mental clarity in every sip.
Boost of Energy
Feel energized with organic coffee. Functional mushrooms add benefits without sacrificing taste—or causing crashes.
No Jitters
Stay calm and focused with sustained energy—no jitters, no crashes.
Delicious Taste
No mushroom flavor here—just rich, classic coffee. With organic coffee from family farms and 100,000+ 5-star reviews, it’s a crowd favorite.
Positive Mood
Brew happiness. Studies show daily coffee consumption supports a healthy mood.
Roast
Dark Roast
Type
Coarse Ground
Tasting Notes
Notes of dark chocolate
Caffeine Level
Regular Caffeine
Usage
Mix coffee grounds with cold water and give it a stir. Refrigerate overnight or up to 24 hours. Strain out the grounds and enjoy.
Science-Backed
No Sugar
No Filler Mycelium
Plant-Based
Gluten Free
Certified Organic
Tested For Toxins
Keto
Science-Backed Ingredients
Our organic Arabica coffee beans come from a small family-run co-op in Honduras. These beans are dark roasted for a rich and complex flavor you’ll crave. It tastes like coffee because it is coffee.
Energy
Focus
This mushroom takes after its name with a fierce brain-powering boost to keep you sharp and energized. We extract our lion’s mane from log-grown fruiting bodies: fully organic, with no fillers, grains or carriers.
Focus
This powerful Peruvian tuber is prebiotic-rich and supports a healthy microbiome so your gut can do its thing.
Prebiotic Fiber
Over
100M+ 100M+
Cups of Four Sigmatic served
& thousands of lives changed
Don't just take our word for it
Formulated to change your day
Subscribe to Four Sigmatic
and Start feeling the benefits
Four Sigmatic vs
Regular Coffee
Coffee Made Smarter™
Coffee Quality
Premium Arabica
Low Quality
No jitters
Positive Mood
Gut support
Less acidic
USDA Organic
100% real mushroom
We only use the fruiting body extracts, no cheap mycelium.
No mushroom, no benefits
Mushroom Legacy Beyond a Decade
Finnish Funguys
- Founded by a 13th-gen farmer Tero Isokauppila and team of Finnish Funguys
- After years of perfecting, Mushroom Coffee was born!
- From freezing Finland to sunny California, we made the leap
- Tero’s book 'Healing Mushrooms' became an Amazon bestseller
The Shroom Boom starts
- Team grows; three offices later, we plant roots in Venice, CA.
- Mushroom Coffee becomes a sensation. Beloved by podcast giants and a-list celebs
- Shroom Rooms spore up in Venice, CA, and Soho, NY to serve FREE mushroom coffee
- Tero’s third book, 'Healing Adaptogens,' is yet another Amazon hit
200 Million Cups Sold
- Find Mushroom Coffee at thousands of U.S. stores like Whole Foods and Sprouts
- A #1 bestseller on Amazon, giving the best coffee brands a run for their beans
- It’s official! We’ve served over +200 million cups of coffee
- And stay tuned, because there’s so much more brewing...
