Although Yan Yu had prepared himself, because of the high purity requirements, refining the freshly melted snow would be quite slow, but he hadn't expected it to be so slow.
It was relatively simple to draw the snowflakes into the palm of his right hand, after all, Su Yunjin was also known for her True Yuan control, but the next step, vaporizing it by heating, was where problems arose.
The high altitude was windy, and it was a tug-of-war zone for hot and cold air, so when the snowflakes were evaporated into vapor, they were about to scatter with the wind, with barely one-tenth being caught by the palm of his left hand to condense into liquid.
After refining for an entire day, he could only manage about a dozen drops of water. At this rate, he estimated it would take at least three months to collect the freshly melted snow water.