Hi, has anyone made their shake up approx 4 hours before drinking it? I am aware that it states once made up drink within 15 minutes. My problem is I have lectures in uni on Mondays all day and I have nowhere to make my shake up with blender. I can't drink them unless blended (hand Blender). Has anyone done this or know if it’s ok to do so? It would only be one day a week. Any advice would be appreciated. Nickie xx