TRIPLE POWER PACK - Three potent sachets designed for multiple appliances—kettles, irons, coffee machines, and shower heads.
EXTEND APPLIANCE LIFE - Regular use restores and maintains your devices’ ‘like new’ shine and functionality.
VERSATILE CONVENIENT - Easy-to-use sachets fit seamlessly into your busy lifestyle and diverse home tech.
ECO CONSCIOUS EU ORIGIN - Crafted in the EU with quality you can trust, supporting sustainable appliance care.
SPOTLESS PERFORMANCE EVERY TIME - Eradicates up to 100% of stubborn limescale for peak appliance efficiency.
Oust Powerful All Purpose Descaler is a 3-sachet pack designed to remove up to 100% of limescale buildup from small household appliances like kettles, coffee machines, irons, and shower heads. This easy-to-use formula not only restores appliances to a ‘good as new’ shine but also helps extend their lifespan, making it an essential maintenance solution for busy professionals who value efficiency and longevity.
Can you tell me if you are supposed to use hot or cold water for my dolce gusto
Hi, can i use this to clean my electric dispensing pot? and how?
When you say fill with water do you mean hot or cold this is for a dolce gusto coffee machine
Can this be used on a Lavazza machine?
Reviews
4.6
All from verified purchases
L**B
My go to for descaling my kettle
This is my go to product when it comes to descaling my kettle.Was able to buy this packet of 3 descalers for £1. So very good value for money.Super easy to use.Boil your kettle 1st, I then place my kettle in the sink and very slowly pour in one of the liquid sachets. Be aware, you need to add the sachet slowly because otherwise the product reacts to the hot water and the kettle will be a over flowing mess of bubbles.I let the solution stand for 10 minutes, pour out the solution, rinse my kettle and then boil my kettle several times afterwards.Each time discarding of the hot water, rinsing, and adding fresh water to boil again.Kettle is left spotless with no traces of limescale left behind.Brilliant product that I will always buy for my kettle.
L**S
Beware the added postage
This product is very good for dissolving limescale in my kettle, no denying that. The last time I purchased it, in 2021, a pack of 3 sachets cost £4.10. But now, although the individual pack price has decreased - minimum 2 x 3 sachet packs @ £1.40, there is added postage of £19.99. Presumably it is being sent from overseas. So the price for 2 packs x 3 sachets is £21.39. A good way to lose customers, I will be buying something else. A shame, because this is a good product.
K**N
It works with minor flaws
I use this to descale my kettle every 2 months. It is easy to use, just follow few simple steps on the instructions, it doesn’t leave any smell afterwards and it is value for money. The only pitfalls is that you can’t fill the kettle full during descale process, or the water will spill, which mean this leave the top part of the kettle unable to be descaled at the same time. Otherwise it will be given 5 stars.
M**
SUPER GOOD STUFF !!!👍👌🙂
Very Easy to use !!!Did a Super Job at Cleaning the inside of my Kettle.FILL KETTLE HALF FULL.BOIL KETTLE.POUR THE CONTENT OF THE PACKET INTO KETTLE.WAIT 10 -15 MINS .IT GETS RID OF LIME SCALE BUILD UP SUPER GREAT 👌👍.KETTLE LIKE NEW NOW 🙂RINSE KETTLE OUT AFTER THE SOLUTION HAS DONE THE JOB & RE FILL KETTLE WITH COLD WATER AND BOIL AGAIN THEN POUR OUT & RINSE AGAIN 👍I BOILED MINE TWICE WITH CLEAN WATER & POURED OUT EACH TIME JUST TO BE SURE THE SOLUTION WAS OUT OF KETTLE !!!ITS SUCH A GOOD FEELING WHEN YOU ACTUALLY BUY SOMETHING THAT WORKS 😊THIS STUFF IS Bloody GOOD !!!I WOULD DEFINITELY RECOMMEND THIS PRODUCT TO ANYONE.
C**.
used this brand for years, it is excellent.
I have tried various products and different methods to periodically clean and descale my kettle and steam-iron. Oust is the best product I have used over the years, and I keep returning to it.I find it simple to use, and extremely effective.The instructions for use are clear and set out in detail on each pouch of liquid.Note that with a steam iron, you heat the iron before you add the Oust and do not reheat it or you could have clouds of "oust steam" in the room. Only use it on your steam iron if the Instructions say that you can - some irons have special cartridges and should not be descaled with something like Oust.I have tried different products, but I find Oust the most effective.
A**R
Great product
I love this product so much! It’s so easy to use and comes with clear instructions on each packet for the product you want to use it for, iron, kettle, coffee machine etc. it’s super cheaper and does a great job at clearing the scale away. I was hesitant to try at first due to the price but now I wouldn’t use anything else.
D**T
Inside of kettle is sparkling
Used two of these inside our kettle which had a small build up of limescale on it. This was making the tea and coffee have a funny taste so used two packs of these into half filled, freshly boiled water and left it for 15 minutes. Had tried one at first but didn’t lift the stains so used another one and after another 10 minutes or so, came back and the kettle was truely sparkeling inside like brand new. Brilliant stuff.Rinsed the kettle thoroughly and threw the first boiled kettle full away, then after that kettle was perfect with 0 funny or after taste etc.
J**3
It's a good product but full of chemicals ... buy citric acid instead.
It's a good product and works well but full of chemicals ... buy citric acid instead.
Common Questions
Trustpilot
TrustScore 4.5 | 7,300+ reviews
Sneha T.
Received my product in pristine condition. Great service overall.
1 month ago
Pooja R.
The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.
Danger. Causes skin irritation. Causes serious eye damage. Keep out of reach of children. Wash hands thoroughly after handling. Wear protective gloves/eye protection/face protection gloves/eye protection. If in Eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a Poison Centre or doctor. If skin irritation occurs: Get medical advice. Take off contaminated clothing and wash before reuse. Contains Lactic acid.
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So very good value for money.Super easy to use.Boil your kettle 1st, I then place my kettle in the sink and very slowly pour in one of the liquid sachets. Be aware, you need to add the sachet slowly because otherwise the product reacts to the hot water and the kettle will be a over flowing mess of bubbles.I let the solution stand for 10 minutes, pour out the solution, rinse my kettle and then boil my kettle several times afterwards.Each time discarding of the hot water, rinsing, and adding fresh water to boil again.Kettle is left spotless with no traces of limescale left behind.Brilliant product that I will always buy for my kettle."},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"5.0"},"author":{"@type":"Person","name":"L***S"},"datePublished":"14 January 2024","name":"Beware the added postage","reviewBody":"This product is very good for dissolving limescale in my kettle, no denying that. The last time I purchased it, in 2021, a pack of 3 sachets cost £4.10. But now, although the individual pack price has decreased - minimum 2 x 3 sachet packs @ £1.40, there is added postage of £19.99. Presumably it is being sent from overseas. So the price for 2 packs x 3 sachets is £21.39. A good way to lose customers, I will be buying something else. A shame, because this is a good product."},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"4.0"},"author":{"@type":"Person","name":"K***N"},"datePublished":"2 July 2021","name":"It works with minor flaws","reviewBody":"I use this to descale my kettle every 2 months. It is easy to use, just follow few simple steps on the instructions, it doesn’t leave any smell afterwards and it is value for money. The only pitfalls is that you can’t fill the kettle full during descale process, or the water will spill, which mean this leave the top part of the kettle unable to be descaled at the same time. Otherwise it will be given 5 stars."},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"5.0"},"author":{"@type":"Person","name":"M*** "},"datePublished":"2 July 2021","name":"SUPER GOOD STUFF !!!👍👌🙂","reviewBody":"Very Easy to use !!!Did a Super Job at Cleaning the inside of my Kettle.FILL KETTLE HALF FULL.BOIL KETTLE.POUR THE CONTENT OF THE PACKET INTO KETTLE.WAIT 10 -15 MINS .IT GETS RID OF LIME SCALE BUILD UP SUPER GREAT 👌👍.KETTLE LIKE NEW NOW 🙂RINSE KETTLE OUT AFTER THE SOLUTION HAS DONE THE JOB & RE FILL KETTLE WITH COLD WATER AND BOIL AGAIN THEN POUR OUT & RINSE AGAIN 👍I BOILED MINE TWICE WITH CLEAN WATER & POURED OUT EACH TIME JUST TO BE SURE THE SOLUTION WAS OUT OF KETTLE !!!ITS SUCH A GOOD FEELING WHEN YOU ACTUALLY BUY SOMETHING THAT WORKS 😊THIS STUFF IS Bloody GOOD !!!I WOULD DEFINITELY RECOMMEND THIS PRODUCT TO ANYONE."},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"5.0"},"author":{"@type":"Person","name":"C***."},"datePublished":"1 March 2022","name":"used this brand for years, it is excellent.","reviewBody":"I have tried various products and different methods to periodically clean and descale my kettle and steam-iron. Oust is the best product I have used over the years, and I keep returning to it.I find it simple to use, and extremely effective.The instructions for use are clear and set out in detail on each pouch of liquid.Note that with a steam iron, you heat the iron before you add the Oust and do not reheat it or you could have clouds of \"oust steam\" in the room. Only use it on your steam iron if the Instructions say that you can - some irons have special cartridges and should not be descaled with something like Oust.I have tried different products, but I find Oust the most effective."},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"5.0"},"author":{"@type":"Person","name":"A***R"},"datePublished":"15 April 2023","name":"Great product","reviewBody":"I love this product so much! It’s so easy to use and comes with clear instructions on each packet for the product you want to use it for, iron, kettle, coffee machine etc. it’s super cheaper and does a great job at clearing the scale away. I was hesitant to try at first due to the price but now I wouldn’t use anything else."},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"5.0"},"author":{"@type":"Person","name":"D***T"},"datePublished":"23 November 2021","name":"Inside of kettle is sparkling","reviewBody":"Used two of these inside our kettle which had a small build up of limescale on it. This was making the tea and coffee have a funny taste so used two packs of these into half filled, freshly boiled water and left it for 15 minutes. Had tried one at first but didn’t lift the stains so used another one and after another 10 minutes or so, came back and the kettle was truely sparkeling inside like brand new. Brilliant stuff.Rinsed the kettle thoroughly and threw the first boiled kettle full away, then after that kettle was perfect with 0 funny or after taste etc."},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"3.0"},"author":{"@type":"Person","name":"J***3"},"datePublished":"16 December 2023","name":"It's a good product but full of chemicals ... buy citric acid instead.","reviewBody":"It's a good product and works well but full of chemicals ... buy citric acid instead."}],"aggregateRating":{"@type":"AggregateRating","ratingValue":4.625,"bestRating":5,"ratingCount":8}},{"@type":"FAQPage","mainEntity":[{"@type":"Question","name":"Can you tell me if you are supposed to use hot or cold water for my dolce gusto","acceptedAnswer":{"@type":"Answer","text":"I rinsed two to three times on hot then did half a rinse of cold and mines now done and the light is green again, pour it into a jug and mix with cold water and put in the tank and then switch to hot"}},{"@type":"Question","name":"Hi, can i use this to clean my electric dispensing pot? and how?","acceptedAnswer":{"@type":"Answer","text":"I'm going to risk it and try on my electric water dispenser."}},{"@type":"Question","name":"When you say fill with water do you mean hot or cold this is for a dolce gusto coffee machine","acceptedAnswer":{"@type":"Answer","text":"I don’t have a coffee machine but it’s the same as a kettle...you use cold water then switch machine on water will heat up. Follow the rest of the instructions on the sachet."}},{"@type":"Question","name":"Can this be used on a Lavazza machine?","acceptedAnswer":{"@type":"Answer","text":"Yes, I believed it can be used with your lavazza coffee machine.\nI used this on monthly basis on my kettle."}}]}]}
