Here is a list of all the preservatives a winery can add to their wine without having to disclose that information on the label.
sulfur dioxide
potassium metabisulfite
potassium sorbate
ammonium sulf...
You wanna see the stuff they put in cheap Supermarket lager like Carling and Fosters, glucose syrup, added sugars, little to no real hops or often hop extract instead, foam stabilisers (the same stuff found in antifreeze) clarifying agents, acidity regulators. heavily pasteurised and filtered, just absolute trash, lifeless, sweet, chemical taste.
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