minutes. If it is left for longer time, will its performance be dropped?
- The performance of pro-long soaking will affect the performance of PVPP, in the same logic, insufficient hydration will also affect the performance of PVPP.
2. As in your presentation file, for maximum efficiency, it should be fully mixed with the beer (/beverage) with contact time of 5 - 10 minutes. If it is mixed with beverage at longer time, will it affect PVPP performance?
- The performance of PVPP will be dictated by the absorption/swelling capacity and the of the PVPP, once it is fully utilize, it will stop being effective.
3. Will PVPP absorb caffeine ? As caffeine is their active ingredient so the don't want it to absorb caffeine out
- I have not heard of this caffeine adsorption in PVPP application.
4. Now they use machine like centrifuge to separate the haze, is it suitable if compare with filter?
- No. you cannot compare a mechanical method vs a chemical one. Centrifuge – removal of haze particle in solution. PVPP absorbed haze causing chemicals like polyphenols soluble in solution.
5. How to measure that PVPP is removed completely from solution ?
PVPP is insoluble and it will not be in solution.