I've done quite a bit of reseach on this, as I am an aspiring cook. I have lavis grain narrowed down a bit, and have some loose ends that I should tie up, but I don't know how. First off, worming actually gives us a hint. The worms like sugar, and the sugar content in grapes makes them an ideal fruit for wine. But, lavis cannot be grapes, because it is a grain, not a fruit. However, perhaps the reason the worms like sugar is more of an addiction. The fermentation process of grapes consists of yeast consuming the sugar and turning it into alcohol. So, I thought that this made sense, because Roshar's atmosphere has a high oxygen content, it must have less CO2, which plants need. Fermentation, as a byproduct, produces CO2, so I thought that this would help the plant grow. Worms would like sugar because it produces alcohol for them to get drunk on, and lavis polyps would have developed it to survive. I was so confident in this theory, I actually made a recipe out of it. But then, oathbringer came out. SPOILER ALERT from here on out. Sapphire wine is made from fermented lavis grain, and it tastes like, and I quote, "Nutty taste with hints of honey." The only alchohol that I could find with this description is a fermented rye based drink. So, I think lavis could be a real-world equivilant of rye. Could I get some feedback?