If you want jelly soup, sure.
As it is Sil-A-Gel (aka jelly with antibacterial agents), it cannot be entirely sterilized and cannot be boiled or put into the dishwasher. Soap and water or a toy cleaner is your best route. While Sil-A-Gel has some antibacterial agents, it's not completely self-cleaning.
Jelly is porous and can house bacteria.