Steri Box for dummies from Mothercare, got one? How do I use it?

[puzzle]

Have this left over from when dd was baby. Now need to sterilise dummies for new baby but no longer have instructions. Anyone know how much water I should put in and how long to microwave for? Cheers

Hi puzzle, if it's the same one as I've got, you fill it with enough water so that the frosted part of the case is covered (i think it's approx 20ml but double check) then microwave for 90 seconds

Thankyou