Determining the age of a Yankee Candle can be challenging since candles do not usually have explicit expiration dates printed on them. However, there are a few indicators you can look for to estimate its age. Firstly, check the packaging or label on the bottom of the candle jar for any production codes or date stamps provided by Yankee Candle. These codes typically consist of letters or numbers that correlate with specific manufacturing dates or batches. You can try contacting Yankee Candle's customer service with these codes to inquire about their interpretation and dating system if available.