BeKeto Mushroom Coffee review: ingredients and dosages compared
By the Mush n Go editorial team - 11 October 2026
By the Mush n Go editorial teamPublished on 11 October 202610 min read
BeKeto review
BeKeto Mushroom Coffee is a Polish vanilla instant coffee, enriched with three mushrooms: reishi, lion's mane and cordyceps, at 3% each, with 60 to 80 mg of caffeine according to the brand. It is an indulgent, sugar-free coffee, designed for people on a ketogenic diet. Brainstoorm takes a different line: no coffee, extracts with every dose written in milligrams, maca, ashwagandha, and 20 mg of caffeine. Here are the two recipes, line by line.
Who is writing: Mush n Go makes Brainstoorm, a direct competitor of BeKeto. This page compares what each brand states on its website and, for Brainstoorm, the technical data sheet from our contract manufacturer. Figures recorded on 6 October 2026. We have no connection with BeKeto.
Brainstoorm coffee flavour
Lion's mane, cordyceps and chaga from the fruiting body, maca, ashwagandha and roasted chicory. The taste of coffee, without the jitters.
Try Brainstoorm →Brainstoorm choc-hazelnut
The same mushroom base, with cocoa and rhodiola. 60 days to change your mind, with a money-back guarantee.
See the choc version →Our verdict in brief
A flavoured instant coffee, or a cup with no coffee.
BeKeto and Brainstoorm both put three mushrooms into an instant powder. The resemblance ends there. BeKeto is first and foremost an instant coffee, flavoured with vanilla, in which the mushrooms make up 9% of the cup. Brainstoorm contains no coffee: its base is roasted chicory, and its recipe is built around the extracts.
- Brainstoorm is for you if you want little caffeine (20 mg), doses written in milligrams of extract, maca and ashwagandha on top of the mushrooms, and 60 days to change your mind.
- BeKeto is for you if you are looking for a vanilla instant coffee, with no sugar or carbohydrates, a list of five ingredients and a low price.
- On price, BeKeto is cheaper as a one-off purchase: around €0.73 per cup in Poland, versus €1.42 for Brainstoorm; on a three-month subscription, Brainstoorm comes down to €0.78.
What is BeKeto
A Polish ketogenic diet brand, and its functional coffees.
BeKeto is a Warsaw-based brand specialising in products for the ketogenic diet. Its range includes three instant mushroom coffees, in the same format and at the same price: Mushroom, Brain Fuel and Chillout. Here we compare Mushroom, French vanilla flavour, which was out of stock on the day we recorded our figures.
The ingredients in detail
What is in one serving of BeKeto.
BeKeto publishes its label and the share of each mushroom in the recipe: 3%. The brand works in percentages, not milligrams; for a 10 g serving, that comes to 300 mg per mushroom. It does not specify whether these are extracts or mushroom powder.
| Ingredient | Stated share | Per 10 g serving | Note |
|---|---|---|---|
| Reishi | 3% | 300 mg | form not specified |
| Lion's mane | 3% | 300 mg | form not specified |
| Cordyceps | 3% | 300 mg | form not specified |
| Total 3 mushrooms | 9% | 900 mg | |
| Instant coffee and natural flavouring | 91% | 9,100 mg | breakdown not stated |
Source: “Mushroom” product page and label on beketo.pl, recorded on 6 October 2026. The milligrams and the 91% are our own calculations based on the stated percentages. The brand's category page refers to “powdered” mushrooms. The extraction ratio, the part of the mushroom used and the polysaccharide content are not stated.
Extract or equivalent
Two numbers for the same mushroom: how to read them.
On a mushroom coffee label, the same ingredient can appear with two very different weights. Both are correct; they simply do not measure the same thing. BeKeto shows percentages, without saying whether these are extracts; Brainstoorm shows dried-plant equivalents. To compare fairly, we give both figures on the Brainstoorm side.
The extract is what is in the cup
An extract is a concentrate. With a 10:1 ratio, it took 10 g of dried mushroom to obtain 1 g of powder.
The equivalent is the starting weight
“1,000 mg dry equivalent” with a 10:1 ratio means 100 mg of extract in the cup.
The part of the mushroom matters
The fruiting body is the mushroom itself; the mycelium is its network of filaments. Both are used, and a clear label says which.
The rule for comparing
Always the same column on both sides: extract against extract, equivalent against equivalent. That is what the following table does.
Dosages compared
Brainstoorm and BeKeto, line by line.
For Brainstoorm, the table gives the actual weight of extract and then, in brackets, the dried-plant equivalent. For BeKeto, the weight calculated from the stated 3%. Brainstoorm coffee flavour: 6 g serving. BeKeto: 10 g serving.
| Per cup | Brainstoorm coffee | BeKeto Mushroom Coffee |
|---|---|---|
| Caffeine | 20 mg, microencapsulated | 60 to 80 mg, the brand's estimate |
| Lion's mane | 100 mg of extract (1,000 mg) | 300 mg, form not specified |
| Cordyceps | 250 mg of extract (1,000 mg) | 300 mg, form not specified |
| Chaga | 20 mg of extract (1,000 mg) | absent |
| Reishi | absent | 300 mg, form not specified |
| Maca | 375 mg of extract (3,000 mg) | absent |
| Ashwagandha | 40 mg of extract | absent |
| Vitamin B5 | 6 mg, 100% of the reference intake | absent |
| Base | roasted chicory 3,500 mg, acacia 889 mg | instant coffee, natural vanilla flavouring |
| Part of the mushroom | fruiting body | not specified |
| Sweetener | xylitol | none |
| Vegan | yes | yes |
Sources: Brainstoorm technical data sheets from Laboratoire FGnutra (editions of 28 January 2026 and 8 July 2025); “Mushroom” product page and label on beketo.pl, recorded on 6 October 2026.
Each recipe has its own logic. BeKeto offers a coffee to enjoy, with vanilla and a touch of three mushrooms whose proportion it states. Brainstoorm gives the weight of extract and the equivalent for each mushroom, specifies that it comes from the fruiting body, and adds maca and ashwagandha. Its vitamin B5, at 100% of the reference intake, contributes to the reduction of tiredness and fatigue and to normal mental performance.
Caffeine
60 to 80 mg on one side, 20 mg on the other.
BeKeto gives no caffeine figure on its product page; its category page gives an estimate of 60 to 80 mg per serving. That is in the region of an espresso, which contains around 80 mg according to the European Food Safety Authority. The brand states that there is nothing to stop you drinking more than one cup a day.
Brainstoorm contains no coffee. Each cup provides 20 mg of NewCaff® microencapsulated caffeine, coated so that it is released gradually, and its taste comes from roasted chicory.
One cup a day
BeKeto: 60 to 80 mg, the brand's estimate. Brainstoorm: 20 mg. The EFSA benchmark for an adult is 400 mg a day, from all sources combined.
With your usual coffees
Two espressos plus one BeKeto: around 220 to 240 mg. The same two espressos plus one Brainstoorm: around 180 mg.
In the afternoon
At 20 mg, a cup of Brainstoorm after lunch weighs four times less on your evening than an espresso.
If caffeine is what matters to you, our article how many cups of coffee a day does the maths cup by cup, and coffee and anxiety sets out the signs of having too much.
Price, shipping, guarantee
The price per cup, and the guarantee in writing.
BeKeto lists its prices in złoty; we give them converted at the European Central Bank rate of 6 October 2026. Brainstoorm prices were recorded on the France store. The BeKeto pouch contains 25 servings, the Brainstoorm pouch 30.
| Prices recorded | Brainstoorm | BeKeto Mushroom Coffee |
|---|---|---|
| 1 pouch | €42.71 for 30 servings, i.e. €1.42 per cup | 79.90 zł (€18.30) for 25 servings, i.e. €0.73 per cup |
| Subscription | €29.90 per month, i.e. €1.00 per cup | not offered |
| Best listed price | €69.90 for 3 months on subscription, i.e. €0.78 per cup | 79.90 zł (€18.30), i.e. €0.73 per cup |
| Shipping | free from €59 in France | free from 249 zł (€57.04) in Poland |
| Money-back guarantee | 60 days, even once the pouch is open | “satisfaction guaranteed” displayed, with no duration or conditions in writing |
Prices recorded on 6 October 2026 on mushngo.com (France store) and beketo.pl (Poland store, €1 = 4.3650 zł). The product was out of stock that day. The BeKeto store's terms and conditions provide for the statutory 14-day right of withdrawal.
As a one-off purchase, BeKeto is almost half the price per cup; on a three-month subscription, the gap narrows to a few cents. Brainstoorm adds a guarantee whose terms are set out in writing: 60 days to ask for a refund, even after opening the pouch.
Which one to choose
A vanilla mushroom coffee, or extracts dosed to the milligram?
If you want an indulgent, sugar-free instant coffee with a touch of mushrooms, BeKeto is a simple, affordable choice, and you will not go wrong. If you want to know exactly what you are drinking, with far less caffeine, without the racing heart at 10 am or the slump at 3 pm, you are the person we created Brainstoorm for.
- 20 mg of caffeine per cup, released gradually: three to four times less than the estimate given by BeKeto.
- Three mushrooms from the fruiting body, 1,000 mg of equivalent each, including 250 mg of cordyceps extract.
- Two extra plants: 3,000 mg of maca equivalent, plus ashwagandha, neither of which is in the BeKeto recipe.
- 6 mg of vitamin B5 in a single cup, i.e. 100% of the reference intake: it contributes to the reduction of tiredness and fatigue.
- No mushroom taste: roasted chicory brings the roundness and bitterness of a coffee.
- 60-day money-back guarantee: you taste, you decide.
More than 50,000 people have already replaced one of their cups with Brainstoorm, and rate it 4.8 out of 5.
Before starting either one
- Both products contain caffeine and are not recommended for children or for pregnant and breastfeeding women.
- Brainstoorm is not recommended if you have a thyroid, liver or heart condition: ask your doctor for advice.
- A food supplement is not a substitute for a varied diet. Do not exceed the stated daily dose.
Your questions
All about BeKeto.
What is in BeKeto Mushroom Coffee?
Instant coffee, a natural vanilla flavouring and three mushrooms, reishi, lion's mane and cordyceps, at 3% each, i.e. 300 mg per 10 g serving by our calculations. The recipe contains no sugar or sweeteners.
How much caffeine is in BeKeto coffee?
The product page gives no figure; the brand estimates it at between 60 and 80 mg per serving on its category page. An espresso contains around 80 mg, a cup of Brainstoorm 20 mg.
Is BeKeto coffee safe?
Nothing in the information published by the brand points to any particular risk. It advises caution if you have a mushroom allergy. If you are on medication, pregnant or breastfeeding, ask your doctor for advice.
Are the mushrooms in BeKeto extracts?
The product page and the label do not say: they state only that each mushroom makes up 3% of the recipe. The brand's category page refers to powdered mushrooms. Brainstoorm uses extracts from the fruiting body, with their weight stated.
How much does BeKeto Mushroom Coffee cost?
79.90 zł for the 250 g pouch, i.e. around €18.30 and €0.73 per cup, price recorded on 6 October 2026. Shipping is free in Poland on orders from 249 zł.
Can you get a refund on BeKeto?
The product page displays “satisfaction guaranteed or your money back”, without specifying any duration or conditions. The store's terms and conditions provide for the statutory 14-day right of withdrawal. Mush n Go refunds Brainstoorm for 60 days, even once the pouch is open.
What is the difference between BeKeto and Brainstoorm?
BeKeto is a vanilla instant coffee containing 9% mushrooms, with 60 to 80 mg of caffeine. Brainstoorm contains no coffee: three mushroom extracts, maca, ashwagandha and 20 mg of caffeine, on a roasted chicory base.
Is BeKeto coffee suitable for a keto diet?
That is how the brand positions itself: 0.2 g of carbohydrates and 0 g of sugars per serving according to its label. Brainstoorm is not specifically designed for this diet: its roasted chicory base provides fibre and around 2.5 g of carbohydrates per cup.
Sources
- BeKeto. “Kawa Rozpuszczalna – Mushroom” product page and label, functional coffees category page, store terms and conditions and delivery page, beketo.pl. Accessed on 6 October 2026.
- European Central Bank. Euro reference rate of 6 October 2026 (Polish złoty).
- Laboratoire FGnutra. Product technical data sheet “Brainstoorm Café 180 g”, edition of 28 January 2026.
- Laboratoire FGnutra. Product technical data sheet “Café Brainstoorm V5” (chocolate hazelnut flavour), edition of 8 July 2025.
- EFSA Panel on Dietetic Products, Nutrition and Allergies (2015). Scientific Opinion on the safety of caffeine. EFSA Journal, 13(5):4102.
- Commission Regulation (EU) No 432/2012 establishing a list of permitted health claims made on foods (vitamin B5).
BeKeto is a trademark of its owner. The information about this product is what the brand publishes; it may have changed since it was recorded. Spotted a mistake? Write to us and we will correct it.
Further reading
Before you choose, see how to read a label and what caffeine changes in your day.
Discover our mushroom and adaptogenic plant supplements
Our vegan formulas, made in Toulouse by a French manufacturer.