...Stabilization ensures the wine won’t develop faults (e.g., preventing tartrate crystals from forming in the bottle) 4. Filtration (optional) – Many red wines are filtered to remove remaining yeast, bacteria, or sediment. Some producers skip this step for a more natural style 5. Sulfur Dioxide Adjustment – A final dose of SO₂ may be added to protect against oxidation. 6. The wine is transferred to a bottling tank. => Each winemaker adjusts these steps depending on their style