Oust Powerful All Purpose Descaler, New Formula, Limescale Remover – Optimal for Kettles, Coffee Machines, Irons and Shower Heads, 3 pack, unscented

This is a great product for cleaning kettles. It works exactly as expected and makes the whole process quick and easy. I’m really happy with the results—it left my kettle looking much cleaner with minimal effort. Definitely a useful item to have.

Ideal item, easy to use, does the job well.

First I want to say that this product works fine but there’s been a lot of hassle using it for me due to poor instructions & an outdated video here on Amazon. The video I’ve briefly mentioned here on Amazon showing you how to use the product well one the product is a powder which I was expecting, either that or a tablet, anyway it’s a liquid in the sachets so that was not as instructed/advertised. So I used the product exactly as instructed expecting the product to froth up like it does in the video & absolutely nothing happened, so I waited a little longer & I added a second sachet to kind of get the chemical reaction that’s very clear to see in the video & still nothing so I jumped ahead in the instructions on the sachets packaging (which also mention froth) & started to re-boil the kettle & that was when the product started to work & fizz up so I turned the kettle off expecting it to froth up but no after the boiling base plate of the kettle was not heating up the fizzing reaction (like bubble in a pop bottle) of the product stoped & there was no froth at all! So I’m partially boiling the kettle to get some kind of reaction & it wouldn’t have been so bad as the kettle didn’t have much limescale in it at all, so I emptied it & washed it out & then the pressure of the tap surprisingly cleared up the vast majority of the inner base of the kettle which I weren’t expecting as it hadn’t frothed up like in the video or as stated on the product’s packaging at all, what was left was just two piece about the size of & looking like in shape of two tadpoles & a small broken thin streak so I put the third & final sachet from a box in after a boil & I did the same only partially re-boiling once for the fizz reaction & I just left it then for about 30 minutes & when I returned & looked into the kettle it was brilliantly silver in colour so a good soak with the product works wonders too, so I’ve learnt for future use to: Is to add a sachet of this product some 8 - 10 mins after boiling the kettle as directed & that’s boiling a kettle that’s just off being half filled with water for one sachet & if the sachet doesn’t appear to be working I’ll know it is doing something I can just trust it now yet I’ll also most certainly give the kettle a boil & turn it off just short of a full boil to get the product visibly working & I may repeat this depending on the amount of scale I’m trying to lift if it’s a little I’ll pour away after leaving it to work for some 20 - 30 minutes & then I’ll clean with the fastest running tap now if there’s a little limescale left I’ll repeat the above & if that is not needed I’ll boil a full kettle of water alone then I’ll pour that out & I’ll thoroughly wash out the kettle before next use. The product does work but the instructions & the usage video are outdated for what you get plus I’ve got a wonderfully clean like new inner kettle base yet I haven’t had any froth whatsoever, not white froth nor dirty white froth, again no froth at all but again a thoroughly clean limescale free kettle.

Works very well and fast! It has an odour when used; however, this cleans away easily. Very simple to use and leaves the kettle looking brand new!

Historically excellent product now unavailable in my supermarket - works better than ‘natural’ solutions which I have tried.

Gets my kettle sparking clean. I use about once a month. It removes limescale easily and is very effective in use. Easy to use with instructions.

Used these in my kettle Wow they work really well, My kettle looks brand new again

Ordered 2 and they came flat pack, well flattened and 1 box was wet in the corner so thought 1 of the satchets had split but low and behold the contents were perfect, boxes dumped, sachets kept 👍

Cleaned our kettle perfectly! Very easy to use.

disappointing result, applied it to my steam iron, partially cleaned the rust limescale but had to flush the dirty water few times and still soiled my ironed clothes afterwards. besides, i got the same results using home recipes like white vinegar so as far as i am concerned, product is ove-rated.

I bought this product for my glass tea kettle. We have hard water where we are and leaves marks on the bottom of the kettle, one packet cleaned the inside of the kettle perfectly.

Would not recommend this

It really bettered the interior of my dirty kettle. Limescale has greatly diminished on the first try, but wasn't all gone. Will continue using it until everything's squeaky clean.