Changes

===Storage===

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 a disk holder (e.g. [http://www.gwkent.com/sulfur-disque-holder-for-barrel.html GW Kent sulfur disk holder] 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 minutes before removing and bunging the barrel for storage.

Ozone <ref>[http://mcclainozone.com/brewery-ozone-sanitation/ Ozone sanitation for barrels]</ref> [need to expand]

====Storing full====