Turn off the keyboard and unplug it
Remove the batteries if it is wireless
Shake out loose debris gently
Use compressed air between the keys
Brush the keys with a soft, dry brush
Wipe the surface with a microfiber cloth
Lightly dampen the cloth with water or isopropyl alcohol
Clean around the keys with cotton swabs
Remove keycaps only if the keyboard allows it
Clean the keycaps separately with mild soap and water
Dry all parts completely before reassembling
Reconnect and test the keyboard after it is fully dry