Complex sentence: During the production of Grodziskie, however, isinglass is added to the holding tanks before the beverage is bottled, which removes the suspended yeast and proteins, leaving a bright, clear beer.
Split into simpler sentences: During the production of Grodziskie, however, the beer is filtered before it is bottled, usually by adding isinglass. The filtration removes the suspended yeast and proteins, leaving a bright, clear beer.