Why does my kettle pop?

Related questions

1. Should you Reboil kettle?
2. Is Smeg British?
3. Are plastic kettles safe for boiling water?
4. Is it safe to drink water from electric kettle?
5. Which kettle boils the fastest?
6. Is Smegma a real word?
7. Do electric kettles use a lot of electricity?
8. Where are Smeg products made?
9. Are plastic kettles safe?
10. Is it OK to reboil water in a kettle?

Tags

1. #harder
2. #their
3. #forming
4. #slightly
5. #boils
6. #company
7. #customers
8. #bubbles
9. #boiling
10. #noise
11. #collapsing
12. #popping
13. #apologised
14. #complained
15. #water
16. #kettles
17. #caused