You ran the math. Here is the receipt.
You’re looking for the functional coffee that prints its dose and shows the math against the brands you already know - you’ve come to the right place. But how does Rainbo’s Fungki Coffee compare to the top competitors? We put Fungki Coffee next to the top mushroom coffee products: one recommended serving of each, as printed on its own label, prices read on 2026-09-09. Here is what the numbers say:
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Fungki Coffee delivers a 3,000mg dried-mushroom equivalent per serving, from 283mg of 8:1 and 16:1 fruiting-body extracts.
At $0.53 per gram of dried-mushroom equivalent, the lowest price per gram on this chart at regular prices, read 2026-09-09.
| ProductProduct | ServingsServ. | Mushroom figure on label (mg)Label figure (mg) | Price per servingPer serving | Price per gram, label's own basisPer gram, label's basis |
|---|---|---|---|---|
| Rainbo Fungki Coffee | 30 | 3,000 | $1.60 | $0.53 |
| dried-mushroom equivalent, from 283mg of 8:1 Lion's Mane and 16:1 Reishi fruiting-body extracts · $1.20 on subscription · $0.40 on subscription | ||||
| Ryze Mushroom Coffee | 30 | 2,000 | $1.50 | $0.75 |
| "full spectrum mushroom" powder; no extraction ratio or growing substrate on the label · $45.00 a bag | ||||
| Everyday Dose Coffee+ | 30 | Not stated | $1.50 | n/a |
| no mushroom figure on the current label: a 7,300mg to 9,000mg proprietary blend that includes collagen and coffee · $45.00 a bag | ||||
| PureShrooms Focus & Think | 35 | 600 | CAD 0.69 | CAD 1.14 |
| Lion's Mane extract weight, no ratio · CAD 23.99 a bag; sold in Canadian dollars | ||||
| Four Sigmatic Focus Instant | 10 | Not stated | $1.50 | n/a |
| no mushroom figure on the label; Lion's Mane, chaga and rhodiola extracts · $15.00 a box of 10 | ||||
Prices are regular retail on each brand's own site, USD unless marked, read 2026-09-09, promotions excluded. Ryze showed a 40% promotion ($27.00) and Four Sigmatic a 50% first-order price the same day; both excluded.
How to read this chart. Every brand prints a different kind of number. Rainbo's 3,000mg is a dried-mushroom equivalent: 283mg of concentrated fruiting-body extract (8:1 Lion's Mane, 16:1 Reishi) standing in for 3,000mg of dried mushroom. Some brands print the weight of mushroom powder in the cup with no extraction ratio; some print an extract weight with no ratio; some print no mushroom figure at all. Each row shows what that brand's own label says. Where a brand gives no ratio we count its figure as 1:1 dried mushroom when we call ours the highest on the chart, which is the most generous reading for that brand. Prices are regular retail on the brand's own site on 2026-09-09, before promotions; a brand that sells only in Canadian dollars is shown in Canadian dollars, not converted. We will correct any row a brand tells us is wrong: info@rainbo.com.
Ryze lists 2,000mg "full spectrum mushroom"; no extraction ratio or growing substrate is given on its label. PureShrooms prints an extract weight with no ratio. Everyday Dose and Four Sigmatic print no mushroom figure. Fungki Coffee is made with 100% organic fruiting body mushrooms.
As Seen In
Same cup. Five very different labels.
3,000mg
Rainbo Fungki Coffee
dried-mushroom equivalent per serving, printed with its extract ratios
2,000mg
Ryze Mushroom Coffee
"full spectrum mushroom" powder; no extraction ratio or growing substrate on the label
Not stated
Everyday Dose Coffee+
no mushroom figure on the current label
600mg
PureShrooms Focus & Think
Lion's Mane extract weight, no ratio
Not stated
Four Sigmatic Focus Instant
no mushroom figure on the label
Fungki Coffee prints the highest dried-mushroom equivalent on this chart, at the lowest price per gram at regular prices: $0.53/g, or $0.40/g on subscription
$48 for 30 servings. 3,000mg dried-mushroom equivalent per cup, from 283mg of concentrated fruiting-body extracts. That works out to 53 cents per equivalent gram: the highest equivalent dose and the lowest price per gram on the chart at regular prices, read 2026-09-09.
On subscription, it drops to $1.20 per cup, or $0.40 per equivalent gram, plus free shipping.
And here is what the per-cup price hides. Per gram, on each label's own basis, Ryze is $0.75 and PureShrooms is CAD 1.14; Everyday Dose and Four Sigmatic print no mushroom figure, so their price per gram cannot be worked out. Fungki Coffee is $0.53 per equivalent gram; $0.40 on subscription. A printed dose, at a lower price per gram.
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The smartest cup is the one that restocks itself.
Functional mushrooms are traditionally taken daily. Subscribe, and every bag is 25% off with free shipping, delivered on your schedule. That is 40 cents per equivalent gram of organic fruiting-body mushroom, the lowest price Fungki Coffee ever costs. Skip, pause, or cancel anytime, no strings.
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Why Is This Important?
Functional mushrooms are traditionally taken daily.
The human studies below used a set daily amount for weeks, which is why we print ours. Here are two human studies on the mushrooms in this cup, with the amounts they used.
1. Lion's Mane · the same-day focus study
In a randomized, double-blind, placebo-controlled crossover study, healthy adults took 1g of a Lion's Mane extract and were tested the same day. Lion's Mane supported working memory and reaction time.
Fungki Coffee's Lion's Mane is a 1,504mg dried-mushroom equivalent per cup, from 188mg of 8:1 fruiting-body extract.
Go deeper: La Monica et al., 2023 · Nutrients. Lion's Mane also has a 16-week cognition study in older adults: Mori et al., 2009 · Phytotherapy Research
2. Reishi · the physical work capacity study
In a 30-day randomized, double-blind study, female college students who took 1,000mg of Reishi daily improved physical work capacity and grip strength.
Fungki Coffee's Reishi is a 1,520mg dried-mushroom equivalent per cup, from 95mg of 16:1 fruiting-body extract.
Both studies used a set daily amount for weeks. That is why every cup of Fungki Coffee carries a 3,000mg dried-mushroom equivalent, printed with its extract ratios (8:1 Lion's Mane, 16:1 Reishi), at the lowest price per gram on this chart at regular prices. Taste is yours to judge: try the whole bag.
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Rainbo’s Fungki Coffee vs. the biggest competitor on the chart
Some mushroom powders are mycelium grown on grain, and the grain travels into the powder. Ryze's label does not say how its "full spectrum mushroom" is grown, and gives no extraction ratio. Fungki Coffee uses fruiting body only and prints its extraction ratios. Fruiting-body advocates, Rainbo among them, hold that hericenones and triterpenoids concentrate in the fruiting body rather than in a grain substrate. We formulate on that basis.
Fungki Coffee is made with 100% organic, dual-extracted fruiting-body mushroom extracts. Our mushroom extracts come with a certificate of analysis for their active compounds (beta-glucans, triterpenes), and finished batches are third-party tested for heavy metals, pesticides and mycotoxins. Certificates available on request.
SATISFACTION GUARANTEE
Try the whole bag. Then decide.
Drink it every day for 30 days. If it is not for you, email info@rainbo.com within 30 days of delivery and we will arrange your refund under our refund policy. The math is on the chart. The only thing left to find out is how you FEEL after 30 days of Fungki Coffee.
What Fungki Coffee’s 3,000mg dried-mushroom equivalent is:
Organic Lion's Mane
1,504mg dried-mushroom equivalent · 188mg of 8:1 fruiting-body extract
Keeps your mind clear and your focus sharp. Lion's Mane supports the brain's own nerve growth factor signalling, so you stay switched on through the day.
Reishi
1,520mg dried-mushroom equivalent · 95mg of 16:1 fruiting-body extract
Calms the system. Reishi helps your body settle and stay steady when the day starts piling up.
Siberian Ginseng
900mg dried-root equivalent · 90mg of 10:1 root extract · Organic
Steadies your energy. It works with your body's stress response so you hold a level output across the day instead of spiking and crashing.
Cold Brew Coffee
44mg Caffeine · Low-Acid
Real coffee, bold and smooth, with about half the caffeine of a regular cup. Enough for a clean lift, gentle enough to skip the jitters, and low-acid so it is easier on your stomach.
Pink Himalayan Salt
A pinch
A pinch of Himalayan salt for flavour and minerals.
What people are saying…
50,000+ Orders from Happy Customers
What people are saying… 50,000+ Orders from Happy Customers
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A daily ritual with a printed dose, at the lowest price per gram on this chart at regular prices, and 25% off when it restocks itself. You already saw the math. Now taste it.
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Vegan
Non GMO
B-Corp Certified
Climate Neutral
Fruiting Body Mushroom
Made in Canada
100% Traceable
Third Party Tested