My sister's in a nursing home, and I would like to make milkshakes for her here at home and take them to her when I visit. The reason for doing this rather than buying one somewhere and taking those to her is so I can control the amount of sugar in them.
My problem is trying to find something to transport them in that would keep them cold. I've been looking at a Stanley thermos that I thought would be perfect until I discovered that they don't recommend putting milk in their products. Not sure why. I guess I could see an issue with doing so if I was going to keep a milkshake in it all day, but I just want to keep it there for about an hour. Do any of you think this would be a problem, and if so, would you have any other suggestions? Thanks.