We recommend storing your chocolate in an air-tight container in a cool and dry place. All of our chocolates are vegan and are made with shelf stable ingredients that do not easily spoil. However, if you bought several bars and have had them for a long time, we recommend visually inspecting each bar before eating. If the bars look dull or have a cloudy coating on them, this means that they have come out of temper due to age, temperature, and humidity variations. It's still safe to eat but it may not be as enjoyable because of the changes in texture. But, don't worry, you can still make incredibly delicious hot chocolate with it just by adding hot water or milk!