I am making wine from three-hundred pounds of free, commercial, California grapes. In Iverson's chapters on white wines he writes: "Avoid plastic carboys as oxygen will eventually permeate and ruin the wine." RUIN he says! But his chapters on red wines do not add this caution. I am not a wealthy man and would like to use the standard, office, drinking-water carboys which are available to me. Will you comment on the practical effect of cheap, plastic carboys on red wines and any process for reducing the oxygen leakage such as coats of clear varnish or some other sealer. Many thanks...
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