We have used this many times on our kettle and after 20 minutes the inside of the kettle is like new without any fuss or any fumes so you do not need to worry if you have any allergies or health problems
After several unsuccessful and unpleasant attempts to de-scale my kettle with another product, I decided to give these bags a try.
The process is simple: you half fill the kettle with water, boil it, put a bag in, and leave it for half an hour.
When I returned to the kettle 30 minutes later, I was amazed and happy to see that all of the scale had gone. The kettle was crystal clear. There are also no unpleasant fumes or smells from this product, which makes me feel less stressed about using it!
This product can also be used for other appliances, but I have only used it on my kettle so far, so can only comment on that. I am really happy with the results of this product and will be using it again in the future.