You can say:
Bettflasche (literal: Bed bottle) or
Wärmflasche (literal: warm bottle)
[Note: the 'ä' makes the sound 'ea' when pronounced]
The best way to safely microwave a hot water bottle is to heat the water in a separate microwave safe container in the microwave and then put the microwaved, hot water into the water bottle.
100
You can use a hot water bottle. Put the hot water bottle on the pain and it should sooth it
hot
The hot water heats the air in the system, causing it to expand.
when you but the bottle in hot water the balloon particles push apart and cause expansion
The air in water bottle expands
When we pour hot water on it, the mouth of the bottle expands and the egg comes out of it slowly.
The cast of Hot Water Bottle - 2012 includes: Peter McGann as Damian
A hot-water bottle and a cup of hot water with a slice of lemon.
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Slightly cooler than the contents.