Notice that the boiling point of acetaldehyde is 21 °C (69.8 F). That's room temperature. So that's why it’s best to perform reactions with acetaldehyde in the refrigerator in a solution to ensure it doesn't all boil away.

If it's in water or alcohol, it takes longer for it to escape at room temperature because it tends to stay trapped in the solution rather than boil away rapidly, much like carbon dioxide bubbles in sodas like Coke or Pepsi. Reactions even in hot peppermint tea will work, but the reaction needs to be quick, so it’s best to use pre-extracted LSA when using hot tea. At room temperature in water or alcohol, it will eventually all boil away if given enough time, but in the refrigerator it will not.

I would like to see an LSH snuff recipe perfected. That would be awesome if it’s possible for LSH to stay in dry form somehow. Or maybe a sublingual tincture would be just as effective?