You can use the ipa to rinse or to lightly brush the fork. If you dip the fork in the ipa and remove it, the alcohol will certainly evaporate before the shellac softens. It’s not like the stones instantly drop to the bottom of the jar or anything. Experiment with an old pallet fork and see how long you can soak it before you can move the stones.
if you want a cheaper alternative to one dip, they exist. If you’re looking to save the planet, consider how much fluid you are using on a watch.