How long will a pre-mixed Protein Shake last?

[egobeater]

I will be drinking my protein shake after my lunch workout, so that means I'll need to mix it in the blender in the morning and leave it in the fridge for about 5 hours. Will it be alright? Plan on blending some natural peanut butter with it also.

Reason I ask is because I can hardly stand drinking them at work when all I do is shake them up with some water. They never mix very well, and makes me sick.

Sorry if discussed before, but hard to search with so many "protein shake" posts. TIA

[Qea]

It'll be fine, so long its kept refridgerated.

Your natty pb will settle at the bottom though, so u still gotta shake things up abit

[Manipul8r]

well sounds gross, but i imagine it would stay, maybe bring the PB and mis it at work??