Adds a furnace that can smoke specific products. Can preserve jellynut and yumako to last longer in transit, but the tradeoff is that you get lass back when you wash off the char and convert it back to jelly or mash.
Uses wood as fuel.

Yes, you can smoke fish. No, you can't un-smoke the fish.

Trees receive the buffs that it would get from Early Agriculture to accomodate the increased demand.