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Boost High Caf Ground Coffee
ENERGY
GROUND
Bring focus to your cup with this delicious organic Arabica whole bean coffee infused with cordyceps mushroom, lion's mane mushroom and coffee bean extract for an extra boost of mental clarity and energy.
Pick your product: Boost High-Caf
Pack Size:
30% OFF of first order
20% OFF on recurring orders
Lowest Price Option
Cancel Any Time
+200M Cups of Four Sigmatic Sold
60-day Money Back Guarantee
Refill Ships In 30 Days
How to use & taste
Use 4 Tbsp of coffee per 12 fl. oz. of water in a drip coffee maker, French press, or pour-over. Enjoy a dark roast with rich notes of dark chocolate.
Benefits
Enhanced focus, extra boost of energy, and a mood-boosting coffee experience you’ll love.
Ingredients
Organic dark roast Arabica coffee and coffee bean extract
Organic lion’s mane extract
Organic cordyceps fruiting body extract
Vitamin B12 (333% DV)
Frequently Asked Questions
Functional mushrooms like Lion’s Mane, Chaga, and Reishi provide a range of benefits, from enhanced focus and mental clarity to gut health and calm. When paired with coffee, these mushrooms create a well-rounded beverage that energizes while supporting -overall well-being—perfect for starting your day or staying grounded.
Despite the name, it doesn’t taste like mushrooms! Instead, it offers a smooth, rich flavor reminiscent of a classic dark roast coffee with subtle notes of dark chocolate. With over 100,000 5-star reviews, customers rave about the taste, enjoying the benefits without compromising their coffee experience.
Yes, Mushroom Coffee is made with organic Arabica coffee. It’s infused with functional mushrooms to elevate your coffee routine without compromising on taste.
Yes! It’s designed to be part of your daily routine, offering a natural and consistent way to support your focus and overall health.
Absolutely! Four Sigmatic products are USDA-certified organic, use real mushroom fruiting bodies (not mycelium), and are free from fillers, artificial flavors, and toxins.
Yes! Our products are purchased as a monthly membership, designed to help you build habits that stick. While habits typically form over 30 days, maintaining them consistently leads to lasting change. For those who prefer to try before committing, we’ve designed limited edition one-time Starter Kits: Shop Starter Kits here.
Rest assured, we offer a 60-day Happiness Guarantee. If you want to cancel your Membership or change the delivery date of your upcoming order, you can do so anytime through your Account Page. Remember, consistency is key to achieving both short-term and long-term benefits!
Rest assured, we offer a 60-day Happiness Guarantee. If you want to cancel your Membership or change the delivery date of your upcoming order, you can do so anytime through your Account Page. Remember, consistency is key to achieving both short-term and long-term benefits!
Absolutely! We offer a 60-day money-back guarantee, no questions asked.
Nope! The founder, Tero Isokauppila, is Finnish. Four Sigmatic was founded over 10 years ago and pioneered the mushroom coffee movement. With the support of wellness experts like Tim Ferriss, Dr. Mark Hyman, and others, Four Sigmatic has become the leader in making functional mushrooms a part of everyday routines worldwide.
Real Premium Coffee, Delicious Taste
Enhanced Focus
Clear brain fog fast with the #1 mushroom coffee. Organic coffee and cordyceps mushrooms enhance focus and mental clarity in every sip.
Extra Boost of Energy
Feel energized with organic coffee. Functional mushrooms and coffee extract add benefits without sacrificing taste.
Positive Mood
Brew happiness. Studies show daily coffee consumption supports a healthy mood.
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.
Roast
Dark Roast
Type
Ground
Tasting Notes
Notes of chocolate
Caffeine Level
High caf*, ~180mg caffeine per serving
Usage
Pre-ground and ready to use in a drip coffee maker, French press, or pour-over
Science-Backed
No Sugar
No Filler Mycelium
Plant-Based
Gluten Free
Certified Organic
Tested For Toxins
Keto
Science-Backed Ingredients
Our high-altitude Honduran beans have rich notes of chocolate and nuts for a smooth drinking experience. We know that some days we need a little something extra so we add in organic coffee extract too for extra caffeine.* It tastes like coffee because it is coffee.
*Added caffeine from coffee bean extract. High caffeine compared to Four Sigmatic Think Organic Ground 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
These mighty mushrooms are known for their support of energy and endurance. Our cordyceps are vegan and organically grown with no mycelium or filler grains to ensure the highest level of quality.
Energy
Endurance
Proven vitamin for energy, no IV required.
Energy
Endurance
Over
200M+ 200M+
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...
