Fire Cider has been around since 1970. It's a very powerful immune booster. Fire Cider is fermented for weeks til months using raw apple Cider vinegar. It can help relief your body of infections such as a cold or flu,etc by simply taking 1 tbsp every 2-3 hours until symptoms ease. If you choose to take as a immune booster or support system just take 1 tbsp a day straight or add into your herbal tea for a extra kick. Shelf life 18 months and does not require refrigeration.