Baking soda: This is also a good absorbent. Put a generous amount of baking soda in an uncovered container (the size of the container depends on the size of the confined area) and leave it for several days. Remove the baking soda and replace it with new one and leave it for a couple of days. Continue replacing the baking soda until it has cleared the trash can smell.
Pandan Leaf: It is easy to get pandan leaf in tropical countries as it is widely used in Southeast Asian cooking to add aroma to dishes. Its pleasant aroma also acts as natural air freshener. Just take a few strips of the pandan leaves and tie them into knots. Place the leaves inside the confined space and leave them until the leaves are withered or dried up. Replace the leaves regularly until the trash can smell goes away.