what device for liquifying rehydrated chilis

in making chili yesterday, using a blender to “liquify” the rehydrated chilis was not that great.
Still had lots of chunks even after moving the contents around a few times.
Just too much vertical space in a blender with 10 rehydrated chilis.

I moved the chilis to a blade grinder, the kind one uses for herbs, nuts or coffee. That did the job, but of course, the device is not meant for wet.

I put roasted coriander and cumin seeds in the grinder after a wipe clean and that did work. The grinder, thus far, seems OK.
Would an immersion blender be better? Really don’t want another kitchen device, but …

Or does someone have a better method of liquifying rehydrated chilis?