Complex sentence: The time jaand is left to remain undisturbed in the pot after completion of fermentation leads to maturing of the jaand, during which the flavours and taste intensifies yet become more mellowed.
Split into simpler sentences: The time jaand is left to remain undisturbed in the pot after completion of fermentation leads to maturing of the jaand. During the maturing the flavours and taste intensifies yet become more mellowed.