Does anybody have any advice on mixing Plasma? The first time I mixed it, it foamed so bad I could hardly drink it. Any advice would be great.
Foaming can be a sporadic issue depending on how much water is used to mix and just how "vigorous" a "vigorous mixing" is. You can try using less water to dissolve the powder and/or shaking the bottle a bit less. Or you could just add the extra water and let the foam go. Not a major loss, just a little mess. Or try making it the day before and let it settle in the fridge.
For more discussion on Biotest supplements: https://biotest-forums.t-nation.com/c/biotest-supplement-advice
I'll usually make mine the night before and put it in the fridge, at this point there's still some foam in the bottle. When you wake up in the morning, it'll be all gone, fill the rest with water and you're good to go.