Yes, it is not uncommon to observe that the candles can go bad and impact their outcomes. For instance - in the case of scented candles, it is not uncommon to observe that these lose their color and fragrance after staying out in the open air.
Similarly, dyed candles when exposed to sunlight over a certain period can lead to fading and the same can impact its beauty. So, if the primary reason for investing in any candle was its appearance then it is important to understand that the same can go bad after meeting the air. As a result, it is recommended to opt for proper storage techniques using an airtight bag or container to attain the best outcomes and to keep these safe for a long time.
However, in the case of unscented candles, the same cannot go spoilt. As a result, it is best to use these for routine tasks