Ooh I need one of these! Is it a full wrap or just the back shoulders?
To be fair, I have loved some of the replies but I am also guilty of not checking the expiry date (didn't know or was a thing) and using probably too hot water in the past. But nothing solves stomach cramps, through whatever source (bowel disease, bugs, or period pain), like a hot water bottle.
Also to echo the PPs. I have tried various wheat bags but they smell sickly and do not hold the heat.
So will go check expiry but will keep using them.