High Quality Content by WIKIPEDIA articles! A beer bottle is a bottle for beer usually made of glass, plastic, or aluminum. Bottled beer has been in use since as early as the 16th century. Beer bottles come in various sizes, shapes and colours. Dark glass prevents light from spoiling the beer. However, lighter coloured bottles are often used for marketing reasons. Bottling lines are production lines that fill beer into bottles on a large scale. This typically involves drawing beer from a holding tank and filling it into bottles in a filling machine (filler), which are then capped, labeled and packed into cases or cartons. Many smaller breweries send their bulk beer to large facilities for contract bottling - though some will bottle by hand.