To clarify your cyser after fermentation, you can use various techniques such as cold crashing, fining agents like bentonite or Sparkolloid, and filtering. Cold crashing involves placing your cyser in a cold environment (like a refrigerator) for a few days to help the yeast and other particles settle out. Fining agents help to bind and settle suspended particles, while filtering physically removes those particles to achieve a clear, sparkling finished product.