1 Ovo-vegetarian diets exclude meat, poultry, seafood and dairy products, but allow eggs. 2  Lacto-ovo vegetarian diets exclude meat, fish and poultry, but allow dairy products and eggs.  Pescatarian diets exclude meat and poultry, dairy, and eggs, but allow fish.
Hash oil is produced by solvent extraction (maceration, infusion or percolation) of marijuana and/or hashish. After filtering and evaporating the solvent, a sticky resinous dark liquid with a strong herbal odor (remarkably different from the peculiar odor of hemp) remains.
Cannabis wax in a small plastic container with uncovered butane vapor pipe alongside. Photo Credit: a katz/ Shutterstock.com. A concentrated form of marijuana known as wax or butane hash oil (BHO) is becoming more popular and its production and use increasingly controversial in states across the country.