Customers praise Alkanatur for clear improvements in water quality and taste, noting that filters make water feel purer on the skin, remove flavors like chlorine, and improve daily drinking water. They highlight practical, user-friendly features: easy installation, fast and efficient shipping, attractive glass jugs, and reliable filtration that reduces plastic bottle usage and waste. The support experience is consistently commended, with several mentions of helpful, responsive service and after-sales assistance. Overall, buyers express satisfaction with product performance, design aesthetics, and the positive impact on daily hydration.
I activated the filter as indicated in the instructions. But it must not be functioning because I did the liquid test and it comes out purple/blue.
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Response from Alkanatur
Hello,
As you can see in the instructions, this is the color of the pH that should come out, which means alkaline water. If you have any questions, you can contact customer service.
Best regards
J
José Manuel B.
Rating: 1 out of 5
following a purchase from 28/06/2025
The filter arrived broken due to inadequate packaging.
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Response from Alkanatur
Dear José Manuel,
We sincerely regret that your filter arrived broken due to inadequate packaging. We appreciate your comment and would like to resolve this situation privately. Please do not hesitate to contact us.
Sincerely,
The Alkanatur team.
Y
Yolanda P.
Rating: 1 out of 5
following a purchase from 21/03/2025
Greenish appeared on the edges. I sent an incident and they tell me to wash it
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Response from Alkanatur
Hello, Yolanda:
We regret that this situation has caused you a bad experience.
The appearance of greenish color is usually not due to a defect in the jug, but to a natural phenomenon that can occur when chlorine-free water remains stagnant for several days, especially in hot weather or if the jug is near a source of light or heat. It is a similar effect to what can be observed in ponds or containers with stored water for a while.
To eliminate it, we recommend performing a deep cleaning with a small amount of diluted bleach in water, letting it act for a few hours and then rinsing the jug thoroughly.
Additionally, to prevent its appearance, we advise performing a weekly cleaning of the jug. If you also observe whitish residues on the walls, you can use a mixture of warm water and vinegar in equal parts, letting it act for a few hours before rinsing. This helps to eliminate mineral deposits and restore the shine of the product.
We regret that our instructions did not meet your expectations, but this is the usual recommended procedure for this type of situation.
Best regards,
Alkanatur Team
E
Emilia R.
Rating: 2 out of 5
following a purchase from 23/03/2025
The water in our area has quite a bit of hardness.
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Response from Alkanatur
Dear Emilia,
We appreciate your comment and understand your concern about the quality of the water in your area. We would like to help you find an appropriate solution, so we invite you to contact our customer service so we can assist you in the best possible way.
Sincerely,
The Alkanatur team.
A
Ascension S.
Rating: 1 out of 5
following a purchase from 03/06/2026
Hello good afternoon, I received the jar broken from the top, I sent an email, I hope they give me a solution soon.
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Response from Alkanatur
Hello Ascensión,
We deeply regret that you received the jar broken and understand your disappointment. We appreciate that you contacted us and invite you to continue the conversation via email to find an appropriate solution.
Sincerely,
The Alkanatur team.
E
Elisenda M.
Rating: 2 out of 5
following a purchase from 09/06/2025
I had to inform the company about the issue with the purchase from the website.
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Response from Alkanatur
Dear Elinenda,
We sincerely appreciate your feedback and regret that you had to contact us regarding an inconvenience with your purchase. We invite you to reach out directly to our customer service so that we can address your situation in the best possible way.
Sincerely,
The Alkanatur team.
S
Sergio G.
Rating: 1 out of 5
following a purchase from 30/08/2025
The material of the lid is too fragile and unstable. When filling the jar, the lid through which the water is introduced lifts very easily and releases all the water even when almost all of it has already leaked out. Additionally, after just one month of use, the spout through which the water is released broke.
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Response from Alkanatur
Dear Sergio,
We regret that your experience with our product has not been satisfactory. We appreciate your feedback and take your comments seriously. We invite you to contact our customer service to assist you in a more personalized manner.
Sincerely,
The Alkanatur team.
M
María R.
Rating: 1 out of 5
following a purchase from 30/08/2025
Some shameless people. As soon as you place an order of 200€ or more, they put a 20% discount on the website, you write to them to comment on it or cancel it and do it again since it hasn't even left the facilities. And they tell you to comb your hair. This has happened to me several times. Oh, and at Bio Cultura Madrid I went to talk to them and they were unpleasant!!!
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Response from Alkanatur
Dear María,
We regret that you had an unsatisfactory experience and appreciate you sharing your opinion. We would like to better understand your situation and find an appropriate solution, so we invite you to contact us directly so we can assist you in the best possible way.
Sincerely,
The Alkanatur team.
A
Alfonso L.
Rating: 2 out of 5
following a purchase from 08/09/2025
“Alkalinizing” the water, a term invented by this brand, is useless. Scientifically speaking, it is like Brita or so many other jugs. It improves the taste of water a lot, but it does not improve your health.
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Response from Alkanatur
Hello, Alfonso:
Thank you for sharing your opinion.
We want to clarify that Alkanatur is not just a jug that improves the taste of water. Our filters reduce substances such as chlorine, certain heavy metals, and other compounds present in tap water, in addition to providing minerals like magnesium.
Regarding alkalinity, this occurs naturally during the filtration and remineralization process of the water. On our website, we have studies, analyses, and certifications that explain in detail how our filters work and the characteristics of the obtained water.
We understand that there are different opinions on this topic and we respect all of them. In any case, we regret that the product did not meet your expectations.
Best regards,
Alkanatur Team
N
Noelia F.
Rating: 1 out of 5
following a purchase from 31/08/2025
I still haven't received the order, I don't see the logic in a survey when I don't even have the product yet.
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Response from Alkanatur
Dear Noelia,
We regret that you have not yet received your order and understand your frustration. We appreciate your willingness to share your experience and invite you to contact our customer service so we can assist you in resolving this issue.
Sincerely,
The Alkanatur team.
M
María José G.
Rating: 2 out of 5
following a purchase from 09/04/2025
Difficulty in delivering the order. Difficult to contact for solutions.
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Response from Alkanatur
Dear María José,
We regret that you have had difficulties with the delivery of your order and that you have not been able to contact us easily. We appreciate your comment and invite you to contact our customer service so we can help you resolve this situation.
Sincerely,
The Alkanatur team.
A
Angeles M.
Rating: 2 out of 5
following a purchase from 22/09/2025
Good morning, the shipment took too long; I expected it much earlier. Sincerely, Á. M. C.
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Response from Alkanatur
Dear Angeles,
We appreciate your comment and regret that the shipment did not arrive on time. Your satisfaction is very important to us, and we are here to help you. If you would like to discuss this further, please do not hesitate to contact our customer service.
Best regards,
The Alkanatur team.
T
Trinidad S.
Rating: 1 out of 5
following a purchase from 23/07/2025
I couldn't place the order because I couldn't access the application
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Response from Alkanatur
Dear Trinidad,
We are sorry that you had difficulties placing your order through our application. We appreciate your interest in our products and invite you to contact us directly so we can help you resolve this issue.
Sincerely,
The Alkanatur team.
A
Adrián G.
Rating: 2 out of 5
following a purchase from 08/05/2025
The filters release a lot of particles and the bottom of the jug turns black. They say it's normal and nothing happens, but seeing the water in that state makes it anything but appealing for consumption. The day they solve this issue, I will be a customer again.
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Response from Alkanatur
Hello Adrián,
We sincerely regret that you had this experience with our filters. We value your opinion and invite you to contact our customer service so we can better understand your situation and find an appropriate solution. Your satisfaction is important to us.
Sincerely,
The Alkanatur team.
S
Sabela B.
Rating: 2 out of 5
following a purchase from 27/09/2025
I don't think it's a great innovation, it seems more expensive than it is and I have the pitcher with the most expensive filters at home.
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Response from Alkanatur
Hello Sabela,
We regret that your experience has not been as expected and appreciate your honesty. We would like to know more about your situation and find a solution that satisfies you, so we invite you to contact us directly.
Sincerely,
The Alkanatur team.
J
José Gabriel C.
Rating: 2 out of 5
following a purchase from 08/08/2025
Very expensive. The design of the pitcher is bad because if it is filled you can't pour water until it has filtered all because otherwise it spills over the top. This doesn't happen with other brands.
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Response from Alkanatur
Dear José Gabriel,
We sincerely appreciate your comment and your honesty. We value your opinion on the design of the pitcher and would like to better understand your experience to help you. We invite you to contact us directly so we can address your concern in a more personalized manner.
Sincerely,
The Alkanatur team.
D
Daniela R.
Rating: 2 out of 5
following a purchase from 21/01/2026
I don't like the taste of the water. I will try the blue filters, let's see if I like them more. But in general, it is not what I expected.
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Response from Alkanatur
Dear Daniela,
We sincerely appreciate your comment and understand that the taste of the water did not meet your expectations. We value your willingness to try the blue filters and are here to help you with whatever you need. Please feel free to contact us directly so we can address your concern in the best possible way.
Sincerely,
The Alkanatur team.
M
Miriam G.
Rating: 1 out of 5
following a purchase from 31/08/2025
Shipments are delayed a lot and they also promised it was BPA-free.. but now it turns out they are removing the glass..
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Response from Alkanatur
Hello Miriam,
We sincerely regret that your experience has not been satisfactory and we understand your frustration regarding shipping times and product information. We invite you to contact us directly so we can resolve this situation in the best possible way.
Sincerely,
The Alkanatur team.
M
Maria Sagrario M.
Rating: 1 out of 5
following a purchase from 09/04/2025
I wanted to buy one piece, and I bought another, upon arrival I saw that it was not the small one, I had to buy the whole blue piece, the replacement is not easy.
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Response from Alkanatur
Dear María Sagrario,
We sincerely appreciate your comment and regret the confusion in your order. We invite you to contact our customer service so we can help you resolve this situation in the best possible way.
Sincerely,
The Alkanatur team.
E
Enrique V.
Rating: 2 out of 5
following a purchase from 10/09/2025
Excessively slow delivery. Orders from China arrive faster. I am still waiting. The quality is good. But the logistics and customer service are not.
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Response from Alkanatur
Dear Enrique,
We sincerely appreciate your feedback and regret that the delivery did not meet your expectations. We value your opinion on the quality and are here to help you with any inconvenience you may have. We invite you to contact us directly so we can address your situation in a more personalized manner.
Sincerely,
The Alkanatur team.
S
Salvador M.
Rating: 1 out of 5
following a purchase from 01/09/2025
The order I placed was managed disastrously.
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Response from Alkanatur
Dear Salvador,
We sincerely regret that your experience with us was not satisfactory. We appreciate your feedback and invite you to contact us privately so we can resolve this situation in the best possible way.
Sincerely,
The Alkanatur team.
M
María R.
Rating: 1 out of 5
following a purchase from 07/05/2025
It doesn't work for eliminating nitrates which is what I have
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Response from Alkanatur
Dear María,
We sincerely appreciate you sharing your experience. We regret that the product did not meet your expectations in nitrate removal. We would like to better understand your situation and assist you in the best possible way, so we invite you to contact us directly to discuss your case.
Sincerely,
The Alkanatur team.
S
Sergio S.
Rating: 1 out of 5
following a purchase from 26/08/2025
After receiving my order, I sent an email stating that the bottle that came with it was broken and I am still waiting for a response, this was almost a year ago
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Response from Alkanatur
Dear Sergio,
We sincerely regret the situation you mentioned and understand your frustration. We invite you to contact our customer service so we can help you resolve this issue. Your satisfaction is important to us.
Sincerely,
The Alkanatur team
J
Jordi J.
Rating: 2 out of 5
following a purchase from 15/12/2024
The pitcher looks whitish.
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Response from Alkanatur
Dear Jordi,
We regret that the pitcher did not meet your expectations and understand your disappointment. We would appreciate it if you could contact us privately so we can look for a solution together.
Sincerely,
The Alkanatur team.
A
Andrea C.
Rating: 1 out of 5
following a purchase from 01/06/2026
Shipping costs are really high and it takes at least 10 days to arrive, also before it came with a little ph bottle, now it is bought separately ...
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Response from Alkanatur
Dear Andrea,
We regret that your experience has not been satisfactory and understand your disappointment. We appreciate your feedback and invite you to contact us privately
J
Jose Maria T.
Rating: 1 out of 5
following a purchase from 01/06/2026
Terrible delivery. It can't be worse. I still haven't received it
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Response from Alkanatur
We sincerely regret that you have not received your order and understand your disappointment. We invite you to contact our customer service so we can help you resolve this situation.
Sincerely,
The Alkanatur team
N
Noelia G.
Rating: 1 out of 5
following a purchase from 01/06/2026
I have not received my order
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Response from Alkanatur
Dear Noelia,
We sincerely regret that you have not received your order and understand your disappointment. We invite you to contact our customer service so we can help you resolve this situation.
Sincerely,
The Alkanatur team
P
Pedro S.
Rating: 1 out of 5
following a purchase from 01/06/2026
The jug doesn't fit in the fridge
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Response from Alkanatur
Dear Pedro,
We regret that the jug did not meet your expectations and thank you for sharing your experience. We invite you to contact our customer service so we can help you and find a suitable solution.
Sincerely,
The Alkanatur team
B
Begoña P.
Rating: 2 out of 5
following a purchase from 27/05/2026
I was looking forward to the pitcher, but it has not satisfied me. I can't put it in the fridge, being so round it doesn't fit in the door and being tall it doesn't stand up on the shelves of the fridge. Also, when pouring water, I don't know if it doesn't fit well but it doesn't come out in a stream, it spills outside, it doesn't aim well in the glass, you know. What a pity, let's see if in winter when cold water is not needed I can use it.
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Response from Alkanatur
Dear Begoña,
We regret that the pitcher did not meet your expectations and understand your frustration. We invite you to contact our customer service, where we will be happy to help you find an appropriate solution.
Sincerely,
The Alkanatur team.
L
Luis Fernando G.
Rating: 2 out of 5
following a purchase from 28/05/2026
The delivery was delayed more than expected. The shipping process for the requested filters should be much more agile.
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Response from Alkanatur
Dear Luis Fernando,
We sincerely appreciate your comment and regret that the delivery did not meet your expectations. We value your opinion and constantly strive to improve our processes. If you would like to discuss your experience further, please feel free to contact us directly.
Sincerely,
The Alkanatur team.
V
Vanesa R.
Rating: 1 out of 5
following a purchase from 21/05/2026
It is not what I expected. The plastic design is much better. In fact, I thought it would be the same but in glass. It holds a lot of water, cannot be stored in the fridge, and the spout does not pour well. They should make the same format they have in plastic but in glass. The filters are fine.
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Response from Alkanatur
Hello Vanesa,
We appreciate your feedback and are sorry that the product did not meet your expectations. Your opinion is very valuable and we would like to know more about your experience, so we invite you to contact us directly so we can help you and resolve your situation.
Sincerely,
The Alkanatur team.
A
Asun M.
Rating: 1 out of 5
following a purchase from 22/05/2026
It has plastic
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Response from Alkanatur
Hello Asun, we are sorry that your experience has not been as expected and we understand your disappointment. We invite you to contact us privately so we can help you find an appropriate solution.
Sincerely,
The Alkanatur team.
C
Celi C.
Rating: 1 out of 5
following a purchase from 18/05/2026
I bought more items by mistake and they haven't even replied when I asked for a code/coupon. They are quick to charge. Slow to deliver. I spoke with customer service who told me they would send me a code/discount by email and THEY HAVEN'T EVEN BOTHERED TO REPLY.
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Response from Alkanatur
Hello Celi,
We are sorry that your experience has not been satisfactory and we appreciate you sharing your comments. We invite you to contact us directly through our customer service so we can help you resolve the issue you mentioned.
Sincerely,
The Alkanatur team.
M
Maksym M.
Rating: 1 out of 5
following a purchase from 18/05/2026
Where is my filters?????
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Response from Alkanatur
Dear Maksym,
We are sorry that you have not received your filters and we understand your frustration. We appreciate your feedback and invite you to contact our customer service so we can resolve this situation together.
Best regards,
The Alkanatur team.
S
Sonia G.
Rating: 1 out of 5
following a purchase from 18/05/2026
I can't make a return because of the expensive amount
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Response from Alkanatur
Dear Sonia,
We regret that you have had difficulties with your return. We invite you to contact our customer service so we can help you resolve this issue. Your satisfaction is important to us.
Sincerely,
The Alkanatur team.
A
Angela A.
Rating: 2 out of 5
following a purchase from 08/05/2026
I am a little disappointed, I don't know if I had too many expectations or if the jug is not working properly. A white layer forms in the middle of the jug that looks like dirt, the jug never fills completely, it always stays a little more than half full and in the filter area, there is stagnant water.
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Response from Alkanatur
Hello Angela,
We sincerely thank you for your feedback and I am sorry that your experience was not as expected. Your comment about the jug has been noted and we are here to assist you. Please contact our customer service to resolve this issue.
Sincerely,
The Alkanatur team
A
Anna C.
Rating: 2 out of 5
following a purchase from 12/05/2026
It is very complicated to process a return of the product
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Response from Alkanatur
Hello Anna,
We are sorry that you found the return process complicated. We are here to help you and improve your experience. Please feel free to contact us directly to manage your return more easily. We appreciate your understanding and your feedback.
Sincerely,
The Alkanatur team
M
Mónica Á.
Rating: 1 out of 5
following a purchase from 12/05/2026
Terrible service, it took me 2 weeks to receive my order after writing to them 3 times and without any notice from them about the reasons for the delay.
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Response from Alkanatur
Hello Monica,
We sincerely appreciate your feedback and I regret that you had an unsatisfactory experience with your order. Your opinion is very valuable to us and we will take your comments into account to improve our service. Please do not hesitate to contact us directly if you need further assistance.
Sincerely,
The Alkanatur team
I
Isabel B.
Rating: 2 out of 5
following a purchase from 13/05/2026
I am not happy because I have changed the filter and I have already filled the jug 5 times and the dirty water keeps coming out, with the price of these filters I think they should work well at least.
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Response from Alkanatur
Hello, Isabel. We regret that you have had this experience with our filter. Your satisfaction is very important to us. We invite you to contact our customer service to resolve this issue and ensure that you enjoy the quality of our product. We appreciate your understanding and are here to help you.
J
Jean Pierre T.
Rating: 2 out of 5
following a purchase from 12/05/2026
I ordered 2 products of which only the shower filter arrived, the jug did not arrive.
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Response from Alkanatur
Hello Jean Pierre,
We sincerely regret the inconvenience you have experienced with your order at Alkanatur. We value your opinion and are here to help you resolve this issue as quickly as possible. Please contact our customer service so that we can ensure you receive the missing jug. We appreciate your trust in us and will work to improve your experience.
Sincerely,
The Alkanatur team
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