Is the Hard Seltzer Kit suitable for vegans? Tori November 01, 2020 19:00 Updated Yes! Our yeast, finings and flavourings do not contain any ingredients from animals. Related articles How much Hard Seltzer does the Mangrove Jack’s Recipe Kit make? What is the ABV of Mangrove Jack’s Hard Seltzer? How should Mangrove Jack’s Hard Seltzer be drank/served? What flavours does Mangrove Jack’s Hard Seltzer come in? What is Hard Seltzer?