People are only just realising little-known hot water bottle symbol – and it's 'unsafe'
If you've been reaching for your hot water bottle as the temperatures drop, there's a key feature you may want to check on it ...
Warning issued to anyone who uses a hot water bottle as temperatures plummet
Experts have warned to be on the lookout for a hidden symbol which can tell you if your hot water bottle has 'expired' ...
What hidden hot water bottle symbol really means – and when to worry
Hot water bottles are a fantastic way to keep warm as the mercury drops, often so effective they can deter you from switching ...