Massimo wants the Japanse Salsola soda herb; this has nothing to do with bottled beverages. Genus Salsola, species soda is a salt tolerant Mediterranean plant. The Japanese variant, Salsola komarovii (commonly called oka hijiki), is related to but distinct from S. soda. The Japanese plant is commonly grown as a vegetable.
This is the first time Kenzi's bedroom is shown.