Fetal bovine serum specific cell type. When changing from batch to batch it is usual to adapt the cells to the new batch of material, for example, by mixing 50% of the old serum with 50% of the new serum and allowing the cells to acclimatise to the new material. Serum is stored frozen to preserve the stability of components such as growth factors. When serum is thawed, some precipitation may be seen. This is a normal phenomenon and it does not compromise the quality of serum in any way. The precipitate may be removed by transferring the serum to sterile tubes and
Blood, Sweat & Tools strong job they did. The winner of the public vote is then announced as the Red Team, who take home the $50,000 grand prize. Blood, Sweat & Tools Blood, Sweat & Tools is a Canadian television series broadcast on Discovery Channel. The series is hosted by Helder Brum, Rob Koci and Hillary Manion, who also act as the challenge judges and expert advisers to the contestants. The series is the successor of "Canada's Worst Handyman", and has a broadly similar format, but with an emphasis on rewarding competent handiwork rather than finding the nation's worst handyman. The couples are divided