For example, while screwtops are generally considered to offer a trichloroanisole (TCA) free seal they reduce the oxygen transfer rate to almost zero, which can lead to reductive qualities in the wine.
For example, while screwtops are generally considered to offer a trichloroanisole (TCA) free seal, it is possible to find TCA contamination in a screw cap bottle. Additionally, they reduce the oxygen transfer rate to almost zero, which can lead to reductive qualities in the wine.