Bottle Pressing Marijuana Horticulture by Jorge Cervantes Press small amounts of resin powder between cellophane to form a pancake. Fill a long cylindrical bottle with warm water and use it as a rolling pin to press the pancake of hash. Leave a Reply Cancel replyCommentEnter your name or username to comment Enter your email address to comment Enter your website URL (optional) Save my name, email, and website in this browser for the next time I comment. Δ