Mangrove Jacks Hard Seltzers kits, make your own low alcohol, zero sugar, long refreshing sparkling water drinks with a touch of fruit. Only 4% abv. Low calories - zero sugars. Enjoy a long refreshing Hard Seltzer whatever the occasion. Available in Lemon and Lime, Pineapple and Raspberry flavours. Mangrove Jacks Hard Seltzer kits can be brewed ready to drink in three weeks. The kits include all the ingredients (no need for added sugar). Ideal for bottling or even kegging as the kits brew 19 Litres of Seltzer.