Leakproof bottles for transporting milk?

[Stringbeing]

Back in the office 1 day a week - kitchen and fridge are out of bounds.

I thought I could manage with little UHT pots, but I think I want fresh milk.

Does anyone have a really good, easy to clean, leakproof little reusable bottle they would recommend? Enough milk for say 3-4 cups of coffee, so not too big.

I can put it in a cool bag with an ice pack, so it doesn't need to be insulated.

DH reckons I should just use a glass ketchup bottle but it's bigger than I want so won't stand up in the cool bag, and I'm worried it might leak.

You can buy mini milk bottles with screw caps

I'd buy a 250ml bottle of water and use it when empty. It's only thing that will stay leakproof.

I would buy a small thermos flask. Leak proof and will stay cool without a bag.

www.chillys.com/uk/products/bottle-series-2-plum?sku=B350S2PLUM&collar=A_COLLAR_S2PLUM&lid=A_LOOP_S2PLUM

Thanks, I was worried a thermos would be harder to keep clean, ideally I want something I can sling in the dishwasher.

I'll have a look for the screw top mini milk bottles, that sounds ideal.