What is the candy jar for in Candy Crush?

In Candy Crush, the candy jar serves as a feature that allows players to collect and store various candies from completed levels. Players can fill the jar by matching candies, and once it's full, they can unlock special rewards or boosters to aid in their gameplay. This adds an extra layer of strategy, encouraging players to focus on specific candy types to maximize their rewards. The candy jar enhances engagement by providing incentives for players to continue progressing through levels.