To make a flavored beverage, plant matter is inserted into a bottle through the neck of the bottle. Afterwards, a generally tubular strainer is inserted into the bottle. The tubular strainer has a flange that sealingly abuts against the neck of the bottle. The bottle is filled with a water-based liquid and capped. By inserting the plant matter before the strainer, the plant matter is trapped between the strainer and the bottle wall, making it visible from the outside if the bottle is clear. The strainer prevents the plant matter from being ingested by the user.