1 / 7ESN Flexpresso Protein Coffee, 908 g, 30 servings
ESN Flexpresso Protein Coffee combines whey protein and real coffee in a powder intended to be mixed hot or cold with water or milk. The listing claims 22g protein per serving and 40mg caffeine, though another product detail gives a different caffeine figure, so check the listing for the selected variant before buying.
At a glance
- Combines whey protein with real instant coffee, according to the listing.
- The listing states 22g of protein per serving and recommends mixing 30g of powder with 250ml of water or milk.
- Can be prepared hot or cold, with water or milk.
- The product description identifies it as made in Germany.
Reference price: £46.99
Price checked: 14 Nov 2026
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Pros and cons
Pros
- Combines a coffee drink and a protein powder, potentially simplifying a morning or pre-workout routine.
- Hot and cold preparation with water or milk offers flexibility in how it is served.
- The listed 908g container provides 30 stated servings.
Technical specifications
18 specifications| Brand | ESN |
|---|---|
| Model | ESN FLEXPRESSO Protein Coffee - Premium Protein Powder with Real Coffee - Delicious & Creamy - 30 Servings - 908 g |
| Flavour | Coffee |
| Protein source | Blend |
| Caffeine description | Caffeinated |
| Diet type | Gluten Free |
| Low-carb claim | Low carb |
| Country of origin | Germany |
| Servings per container | 30 |
|---|---|
| Item weight | 908 Grams |
| Protein per serving | 22g |
| Caffeine per serving | 40mg |
| Dimensions listed | 14 x 14 x 21.7 centimetres |
|---|
| Suggested use | Pre-Workout |
|---|---|
| Mixing directions | Mix 30g of powder with 250ml of (plant-based) milk or water in a shaker. |
| Preparation options | Whether you prefer it hot or cold, with water or milk – you can prepare your protein coffee to suit your taste |
| Allergen information | Contains: Milk, Soy |
|---|---|
| Sugar claim | NO ADDED SUGARS(2) |
What to know before buying
Listing details to confirm
Caffeine information is inconsistent: the product-specific feature claim says 40mg per serving, while general variant guidance says most variants contain 80mg per 30g serving. Confirm the caffeine amount for this coffee variant. The listing also gives 30 servings in its title and details but says 908g is approximately 33 servings in its FAQ, so the usable serving count is not fully consistent.
Who is it for?
A good fit for
- Buyers seeking a coffee-flavoured whey protein powder that can be mixed with water or milk and served hot or cold.
- Those who want a listed 22g of protein per serving alongside coffee, while checking the variant's caffeine amount.
Less suited to
- People avoiding caffeine or milk and soy, given the listing's caffeinated description and allergen statement.
- Buyers who need consistently easy mixing or a sweetness profile they can predict, as customer feedback reports mixed experiences on both.

Customer reviews on Amazon
- 5 stars
69% 69% - 4 stars
12% 12% - 3 stars
8% 8% - 2 stars
4% 4% - 1 star
7% 7%
Customer feedback is mixed on sweetness, with some enjoying the taste and others finding the sweeteners overpowering. Reports also vary on mixing and texture, including accounts of clumping. Value for money is disputed. These experiences matter if you prefer a mildly sweet drink or need a reliably smooth shake. The listed preparation options include water or milk, but they do not establish that the powder will always mix smoothly.
Mixed feedback
- Sweetness divides customers, with some liking the taste and others finding the sweeteners too strong.
- Some customers report clumping or poor mixing, while feedback on texture is mixed.
- Value for money receives mixed opinions.
Frequently asked questions
How much protein does one serving provide?
The listing claims 22g of protein per serving. It recommends mixing 30g of powder with 250ml of water or milk.
How much caffeine does it contain?
The product-specific feature claim states 40mg per serving, but general variant guidance says most variants have 80mg per 30g serving. Confirm the amount for the selected coffee variant.
Can it be prepared hot or cold?
The listing says it can be mixed hot or cold with water or milk.
How many servings are in the container?
The title and product details state 30 servings, while the FAQ describes 908g as approximately 33 servings of 30g. The listed serving count is therefore inconsistent.

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