Naturtreu Pilzkaffee review: ingredients and dosages compared
By the Mush n Go editorial team - 08 October 2026
By the Mush n Go editorial teamPublished on 8 October 202610 min read
Naturtreu review
Naturtreu's Pilzkaffee is a German instant coffee enriched with four mushrooms: 500 mg of extracts and 94 mg of caffeine per cup, at a very keen price. It is a real coffee, with the caffeine of a real coffee. Brainstoorm takes the opposite approach: 20 mg of caffeine, almost five times less, with maca and ashwagandha on top of the mushrooms. Here are the two labels, line by line.
Who is writing: Mush n Go makes Brainstoorm, a direct competitor of Naturtreu. 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 Naturtreu or with ZENKOH GmbH, the company that sells it.
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
An enriched coffee on one side, a coffee alternative on the other.
Naturtreu and Brainstoorm sit on the same shelf, but they are not the same kind of drink. Naturtreu's Pilzkaffee is first and foremost coffee: more than half of the cup is coffee extract. Brainstoorm contains no coffee at all: its taste comes from roasted chicory, and its caffeine is added in a small dose.
- Brainstoorm is for you if cutting down on caffeine is exactly what you are after (20 mg), if maca and ashwagandha interest you, and if you want 60 days to make up your mind.
- Naturtreu is for you if you want to keep a real, fully caffeinated coffee, simply enriched with mushrooms, with a very short ingredient list and a low price.
- On price, Naturtreu is clearly cheaper: €0.67 per cup, versus €1.42 for Brainstoorm as a one-off purchase and €0.78 at the best subscription rate.
What is Naturtreu
A German supplement brand, and its mushroom coffee.
Naturtreu is a German food supplement brand, sold by the company ZENKOH GmbH. Its catalogue runs to around 170 products; the Pilzkaffee, launched in late 2024, is its mushroom coffee. You make it with a measuring spoon in 300 ml of hot water, once a day, and the brand also delivers it to France.
The ingredients in detail
What is in a cup of Naturtreu Pilzkaffee.
Naturtreu's label is a model of clarity: six lines, each with its weight, and a total that adds up exactly to the 5 g serving. The brand gives the weight of extract for each mushroom and, for three of them, the extraction ratio.
| Ingredient | Extract | Ratio | Mushroom equivalent |
|---|---|---|---|
| Coffee extract | 2,750 mg | of which 94 mg caffeine | |
| Coconut milk powder | 1,750 mg | ||
| Reishi | 150 mg | 14:1 | 2,100 mg |
| Chaga | 150 mg | 5:1 | 750 mg |
| Lion's mane | 100 mg | 30:1 | 3,000 mg |
| Cordyceps | 100 mg | not stated | — |
| Total 4 mushrooms | 500 mg |
Source: product page and label of the “Pilzkaffee” on naturtreu.de, recorded on 6 October 2026. The “mushroom equivalent” column is our own calculation: weight of extract multiplied by the ratio. The brand states that it uses the fruiting body; it does not publish a polysaccharide content.
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. Naturtreu shows weights of extract and its ratios; Brainstoorm shows dried-plant equivalents. To compare fairly, we give both figures on both sides.
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 Naturtreu, line by line.
For each mushroom, the table gives the actual weight of extract and then, in brackets, the dried-mushroom equivalent. Brainstoorm coffee flavour: 6 g serving. Naturtreu Pilzkaffee: 5 g serving.
| Per cup | Brainstoorm coffee | Naturtreu Pilzkaffee |
|---|---|---|
| Caffeine | 20 mg, microencapsulated | 94 mg, from the coffee extract |
| Lion's mane | 100 mg (1,000 mg) | 100 mg (3,000 mg) |
| Cordyceps | 250 mg (1,000 mg) | 100 mg, ratio not stated |
| Chaga | 20 mg (1,000 mg) | 150 mg (750 mg) |
| Reishi | absent | 150 mg (2,100 mg) |
| Maca | 375 mg (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 | coffee extract 2,750 mg, coconut milk 1,750 mg |
| Sweetener | xylitol | none |
| Part of the mushroom | fruiting body | fruiting body |
| Vegan | yes | yes |
Sources: Brainstoorm technical data sheets from Laboratoire FGnutra (editions of 28 January 2026 and 8 July 2025); product page and label of the “Pilzkaffee” on naturtreu.de, recorded on 6 October 2026.
Each recipe has its own logic. Naturtreu starts from a coffee and adds four mushrooms to it, reishi among them, for 500 mg of extracts in total. Brainstoorm starts from the active ingredients and builds the cup around them: three mushrooms, two and a half times more cordyceps extract, a good dose of maca, ashwagandha, a chicory base, and caffeine brought down to 20 mg. Its vitamin B5, at 100% of the reference intake, contributes to the reduction of tiredness and fatigue and to normal mental performance.
Caffeine
94 mg on one side, 20 mg on the other.
This is the real dividing line. An espresso contains around 80 mg of caffeine according to the European Food Safety Authority. With 94 mg per cup, Naturtreu's Pilzkaffee therefore sits slightly above that: it is a coffee in its own right, and its label says as much by advising against it for pregnant and breastfeeding women and for under-18s.
Brainstoorm was designed for people who want to do exactly that: ease off. Each cup contains 20 mg of NewCaff® microencapsulated caffeine, coated so that it is released gradually. The coffee taste comes from roasted chicory, which contains none.
One cup a day
Naturtreu Pilzkaffee: 94 mg. 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 Naturtreu Pilzkaffee: around 254 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 time to make up your mind.
Naturtreu sells its Pilzkaffee in Germany and delivers it to France. Brainstoorm is sold from France. Both contain 30 servings.
| Prices recorded | Brainstoorm | Naturtreu Pilzkaffee |
|---|---|---|
| Price of one tin or pouch | €42.71, i.e. €1.42 per cup | €19.99 at list price, i.e. €0.67 per cup |
| Subscription | €29.90 per month, i.e. €1.00 per cup | not offered on the product page |
| Best listed price | €69.90 for 3 months on subscription, i.e. €0.78 per cup | €18.00 on promotion on the day of our check, i.e. €0.60 per cup |
| Delivery to France | free from €59 | €9.99, free from €49 |
| Money-back guarantee | 60 days | 30 days |
Prices recorded on 6 October 2026 on mushngo.com (France store) and naturtreu.de (Germany store, shipping costs to France as per the brand's shipping policy).
On price, Naturtreu wins hands down: as a one-off purchase, its cup costs half as much. What Brainstoorm offers in return is a different drink: far less caffeine, plants as well as mushrooms, and twice as long to decide whether it suits you.
Which one to choose
Keep your caffeine, or divide it by five?
If you like your coffee just as it is and simply want to slip some mushrooms into it, Naturtreu's Pilzkaffee does the job very well, at a low price, and you will not go wrong. If what you are after is the ritual of a morning coffee 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: almost five times less than Naturtreu's Pilzkaffee.
- 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 Naturtreu 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 under-18s 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 Naturtreu.
What is in Naturtreu Pilzkaffee?
A 5 g serving contains 2,750 mg of coffee extract, 1,750 mg of coconut milk powder and 500 mg of extracts from four mushrooms: reishi 150 mg, chaga 150 mg, lion's mane 100 mg and cordyceps 100 mg. Nothing else.
How much caffeine is in Naturtreu Pilzkaffee?
94 mg per serving, according to its label. That is slightly more than an espresso, which contains around 80 mg. A cup of Brainstoorm contains 20 mg.
Is Naturtreu Pilzkaffee dangerous?
Nothing in the information published by the brand points to any particular risk. As it contains 94 mg of caffeine, its label advises against it for pregnant and breastfeeding women and for under-18s. If you are on medical treatment, ask your doctor for advice.
Is Naturtreu Pilzkaffee organic?
No, the product is not presented as organic. It is described as vegan, gluten-free, free from artificial flavourings and made in Germany. Brainstoorm is made in France and is not certified organic either.
How much does Naturtreu Pilzkaffee cost?
€19.99 for the tin of 30 servings at list price, and €18.00 on promotion on 6 October 2026, the day of our check. Delivery to France costs €9.99 and becomes free on orders from €49.
Can you get a refund?
Naturtreu advertises a 30-day satisfaction promise from receipt, with a refund of the purchase price. Mush n Go refunds Brainstoorm for 60 days.
What is the difference between Naturtreu and Brainstoorm?
Naturtreu's Pilzkaffee is an instant coffee enriched with four mushrooms, with 94 mg of caffeine. Brainstoorm contains no coffee: three mushrooms, maca, ashwagandha and 20 mg of caffeine on a roasted chicory base.
Does Naturtreu deliver to France?
Yes, according to its shipping policy: €9.99 shipping, free on orders from €49, in 3 to 8 working days. Brainstoorm is shipped from France, with free shipping from €59.
Sources
- Naturtreu. Product page and label “Pilzkaffee: Löwenmähne, Chaga, Reishi & Cordyceps”, shipping policy and legal notice, naturtreu.de. Accessed on 6 October 2026.
- 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).
Naturtreu 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.