Around 10-15 years ago, the recycling of cork stoppers began in earnest. Since 2018, 550 million corks have been collected worldwide for recycling, according to Amorim, Portugal’s and the world ...

* Cork stoppers sometimes taint wine with trichloroanisole (TCA), which gives the wine the undesirable "wet dog" odor. Various studies put the share of TCA-tainted wine at 1 to 7 percent.