I often wondered why the local mikvah has candy in a bowl near the exit. I thought perhaps it was just so you can have a sweet taste after doing a great mitzvah – the icing on the cake if you will.
Apparently there might be something more to it. Before a woman immerses herself in the holy waters one of the cleansing processes is to brush and floss her teeth very well, making sure that there is nothing stuck in between any of the teeth.
Many a time it has happened that a woman will have come home from mikvah and felt something loosen from between her teeth, which could possibly invalidate her immersion. (ask your CLOR). If she has eaten something after immersing but before getting home – and she feels that loosening of in between the teeth stuff – she can blame it on the food she ate after immersion.
There are some rabbis, so I have read, who even recommend to their congregants, that they should eat something on the way home from mikvah, if this type of incident happens more than once.
The mikvah here in Monsey has chewy candies by the exit, NOW it makes sense. I just thought they were being sweet.