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Coors Field humidor: How the “environmental chamber” at 20th and Blake changed baseball

Former Rockies right-hander Jason Jennings chuckled at the absurdity of the question.

“Yes, of course, the humidor made a difference,” he said. “It 100% made a difference. For pitchers, it was about surviving.”

It’s been 20 years since Jennings was the runaway winner for National League rookie of the year, and 20 years since the Rockies began storing baseballs inside a humidor in an attempt to bring some semblance of baseball sanity to Coors Field.

In fact, it was 20 years ago Sunday that The Denver Post broke the story.

“At long last, the Colorado Rockies have discovered a way to tame baseball at altitude,” former Post Rockies beat writer Mike Klis wrote.