I cold brewed this for about 18 hours. I used 2tsp for close to 16 oz, but this was too weak. I would have to use 3-4tsp to see if I can bring out more flavour. I am not usually the biggest fan of hibiscus, but I thought it would be appropriate for cherry. It was a nice light pink which was neat. The cherry was certainly there, but I need more of it.