Hey, this thought just occurred to me.

Instead of grinding and soaking the seeds, what about putting them in water and freezing them? Then thawing, drinking the liquid and eating the seeds? Wouldn't this method soften the seeds enough to be chewed?

I've tried soaking other methods: Heating the water might destroy some of the alkaloids, and soaking for a long time in cold water might allow the start of some mold. But freezing?

There is still some debate on what chemicals the seeds contain. I've been very successful in grinding the seeds, then doing a naphta wash (soaking the seeds in naphta for 15 minutes, stirring and then discarding the naphta) and just consuming the seeds raw. If you skip the naphtha wash you might get some nasty chemicals, but I'm not sure and if you do the naphta wash, eating the plant material doesn't seem to cause any problems.

Works well in a party setting.

Why do you soak in naptha?
I'd like to eat the raw plant material, but the seeds are usually so hard they start breaking my teeth when I chew them. Fresh would be ideal, but that's not always available.

Naphta soak is to remove the unwanted chemicals that are the purported reason for the stomach pain that gives the seeds so bad a reputation. I don't know for sure if it's necessary, but at least I have had very little nausea.

I recommend buying a cheap espresso grinder for processing the seeds. Got one for 20 €.

I don't need to soak with naphtha then. These seeds are organic/not treated.

I rarely have nausea when I consume LSA-containing seeds anyway.

And I am specifically trying to avoid using a grinder. Thanks

The naphtha soak (also) removes lipophilic irritant substances produced by the plant itself. But seeing as you report little in the way of nausea it does indeed look like you can omit that step.

I've brewed coffee recently in a similar way with good results (although the beans were ground, of course). This suggests that you may get something by collecting the meltwater. And anyhow, if that proves disappointing you will still have the seeds to chew. The main thing is to protect the solution from light while the thawing takes place.