Hi all, this isnt strictly a cooking question, but it's in the general realm of food, so i'm hoping you lovely people might have some insights.
I'm very fond of taking protein shakes with me when i go otu. It's a liquid lunch on the go, and helps with my lifestyle. However i have a problem with storing them
I've mostly been using 500ml plastic soda bottles until now. The screw cap is important because i tend to shove it in my handbag or pocket, and take little sips throughout the day, it has to be spill proof.
The problem though is with the nature of the substance. Protein powder (and shakes made with it) stick to things very strongly when it dries, making it very difficult to clean the bottles out after i'm done. Even a specialised bottle brush hasn't helped much in this regard.
Cleaning them is necessary because protein rots very quickly, after a day it starts to fester bacteria and smell horrible, even a tiny bit of residue will taint the bottle and i've had to throw lots out. continually replacing them is an expense i'd rather do without.
Therefore, i'd like some suggestions on an alternate way of storing and carrying these things. It's got to be some sort of spillproof container for liquid which is ideally, very cheap and designed to be thrown away after one use. OR alternatively, something that's really easy to clean, and perhaps resistant to sticking in the first place.
ideas please? x