New
Four Sigmatic
Protein Coffee (with Creatine, Collagen & Lion's Mane)
7.0Fair
A 'proffee' powder: instant Arabica with 10 g protein, creatine, collagen and lion's mane in one scoop. Sweet, convenient and $3 a cup.
$3.00 / cup
Best overall
Four Sigmatic
Focus Ground Coffee – Dark Roast (Lion's Mane & Chaga)
Organic dark-roast ground coffee with lion's mane and chaga extracts. It brews and tastes like regular coffee, with full caffeine.
7.7
Good
Coffee Reviews score
See the breakdown →
Community
—/10
- Roast
- Dark
- Origin
- 🇭🇳 Honduras
- Caffeine
- Regular
- Price per serving
- $1.54 / cup
- Dark Chocolate
USDA Organic
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Last reviewed October 17, 2026 by the Coffee Reviews editors · How we score
Organic dark-roast ground coffee with lion's mane and chaga extracts. It brews and tastes like regular coffee, with full caffeine.
This is Four Sigmatic's flagship ground mushroom coffee, the lion's mane and chaga dark roast that older reviews and retailer listings call 'Think'. It uses organic Arabica from a family-run Honduran co-op plus organic lion's mane and wildcrafted chaga extracts. Unlike instant mushroom mixes it brews in a drip machine, pour-over or French press, with about 150 mg of caffeine per 12 oz cup, the same as regular coffee. Reviewers mostly say it tastes like an ordinary dark roast. The brand does not give per-cup mushroom amounts, and evidence for the focus claims is limited.
Best for
- Coffee drinkers who want a mushroom coffee that still tastes like coffee
- Drip, pour-over and French press brewers
- Fans of dark, low-acid roasts
What we like
- Tastes like regular dark-roast coffee, and most reviewers detect no mushroom flavor
- Works in drip, pour-over, French press or cold brew
- USDA Organic coffee from a family-run Honduran co-op
- Lion's mane and chaga are fruiting-body extracts with no grain fillers, per the brand
Watch-outs
- Full caffeine (about 150 mg per 12 oz), so it won't help anyone cutting back
- Per-serving lion's mane and chaga amounts aren't disclosed
- Costs more per cup than comparable organic coffee
- Benefits beyond normal coffee are unproven
Flavor profile
What it tastes like.
In the roaster’s words
“Notes of dark chocolate”
- Dark Chocolate
- acidity
- body
- sweetness
- bitterness
LightMediumDark
How it scored
The breakdown.
7.7Good
Cup score out of 10, weighted across five factors.
- Flavor & cup quality30%7.8
Reviewers say it is hard to tell apart from a regular dark roast: nutty and smooth to most, a little bland or earthy to some.
- Quality & freshness20%8.0
Organic Arabica with fruiting-body extracts and no fillers, sold as real ground coffee rather than an instant blend.
- Value20%7.3
$20 for about 13 cups ($1.54 each) is expensive for ground coffee, though in line with mushroom-coffee rivals.
- Sourcing & transparency15%7.6
Names a Honduran co-op and uses USDA Organic ingredients, but gives no mushroom dose; the page shows only a generic 'Tested For Toxins' badge.
- Community love15%7.7
A long-running favorite with positive taste reviews, though few people report effects beyond normal coffee.
Creator video reviews
Watch it in action.
3 positive
Independent creators, verified with YouTube and TikTok. We don’t pay for reviews and creators don’t pay us.
What people are saying
From the forums.
Verbatim from Reddit, forums and long-term owner write-ups — linked so you can read the full thread.
“In all honesty I couldn’t notice any meaningful difference between Four Sigmatic’s taste profile and your regular cuppa joe. It brews dark and nutty, and finishes smooth.”
“I don't like the taste as much as my standard dark roast coffee, but I think that has more to do with the fact that it's a dark roast than the brand itself. I prefer light roasts. The taste is a bit bland with an earthy aftertaste that isn't terrible but isn't amazing.”
“Four Sigmatic with Lion’s Mane has enabled me to get down from 10+ cups daily to one cup daily. I prepare it with an aeropress.”
“As far as taste, you’ll hardly notice anything other than your favorite type of coffee in there.”
Details
The particulars.
- Origin
- 🇭🇳 Honduras (Small family-run co-op (unnamed))
- Species
- Arabica
- Format
- Ground
- Caffeine
- Regular · ~150 mg per serving
- Functional ingredients
- Lion's mane extract (log-grown fruiting bodies), Chaga extract (wildcrafted)
- Ingredients
- Organic dark roast Arabica coffee, organic lion's mane extract, organic wildcrafted chaga extract (as described on the product page; per-serving amounts are not stated).
- Best brewed as
- Drip machine, Pour-over, French press, Cold brew, Iced / over ice
- Certifications
- USDA Organic
- Typical price
- $20.00 for 10 oz bag (checked October 2026)
- Servings
- About 13 servings per 10 oz bag, the brand's figure ($1.54 per serving), using 4 Tbsp per 12 fl oz. Subscribe & save cuts the first order by 30%.
Community
Member tasting notes & discussion.
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Discussion
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FAQ
Good questions.
How much caffeine does it have?
Four Sigmatic says about 150 mg per 12 oz cup, about the same as regular coffee. The brand also sells half-caf and decaf ground versions for anyone who wants less.
Does it taste like mushrooms?
Most reviewers say no: it brews like a dark-roast coffee, and the brand lists notes of dark chocolate. One tester found it slightly bland with an earthy aftertaste.
How much lion's mane is in each cup?
Four Sigmatic's product page doesn't give a per-serving amount. Taste of Home's review lists 500 mg of log-grown lion's mane and wildcrafted chaga combined. The brand says it uses fruiting-body extracts with no fillers, grains or carriers.
Is this the same as Four Sigmatic Think coffee?
Yes. Taste of Home notes the packaging was rebranded from 'Think' to 'Focus' and the coffee is the same. Older listings show a 12 oz bag; the bag sold on the brand site is now 10 oz.
Sources (10)
- us.foursigmatic.com/products/focus-ground-coffee-bag
- us.foursigmatic.com/products/focus-ground-coffee-bag.json
- us.foursigmatic.com/pages/about-us
- en.wikipedia.org/wiki/Four_Sigmatic
- amazon.com/dp/B0756D1D39
- shop.tiktok.com/us/pdp/focus-coffee-by-four-sigmatic-organic-lions-mane-chaga-12oz/1729417126174954085
- thequalityedit.com/articles/i-tried-four-sigmatics-mushroom-coffee-and-heres-what-happened
- illuminatelabs.org/blogs/health/four-sigmatic-review
- news.ycombinator.com/item?id=32289321
- tasteofhome.com/collection/mushroom-coffee-brands/
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