Changes

Burning sulfur sticks/wicks or disks. For the preservation of empty barrels or other wooden vessels, burn 4 g of sulfur per hectoliter of capacity and repeat every 40 - 50 days <ref>2016. Laffort sulfur disc instruction manual. South Africa</ref>. To use disks, use disk holder <ref>[http://www.gwkent.com/sulfur-disque-holder-for-barrel.html]</ref> or create a wire hook to suspend the sulphur disc in the barrel. Light the disc and place into barrel, inserting a bung to prevent the SO₂ gas from escaping. Leave to burn for a few minuted before removing and bunging the barrel for storage.

'''Note:''' Do not burn sulfur in used spirit barrels, as there is a risk of explosion.'''