The special suit I had to put on looked like something you might wear to walk across cooling lava, but it was to protect against the cold, not the heat--though the lab, when we entered, was ordinary room temperature.The suit was necessary because I was going to be shown some of the experimental substance. Hyperalloy tongs lifted out a vial--and a killing cold radiated from it, covering the lab in hoarfrost. The substance was the ultimate cold #brew, near absolute zero.