Koenig bw1880 Instruction Manual page 4

HOW TO SELECT A KEG
 Sealed 5L universal keg and Heineken keg applies only
 Pay close attention to safety and storage messages about the
keg / on the keg.
 Check the keg is neither damaged nor beer out-of-date before
purchasing.
 Protect the top surface from being
damaged. Otherwise it could be difficult of
accession for the suction tube.
 Keep the keg in a rather cold for 12 hours
but not too cold place (e.g. refrigerator)
until next use.
 Never shake the keg before use
 Never put the beer keg under the sunlight
BEER KEG SEALANT
All 5 Liter beer keg with the below various appearance sealants can
apply to the beer cooler, however, you should follow the information
as below
*The sealants with code No. 20 and 21 can be pierced simply by the
cooler piercing pin.