Patent ID: 7293427

Claim:
An apparatus for cooling a food or beverage in a single-portion food or beverage container comprising: a collection device comprising a substantially circular ring having a permanently closed joint; and a plurality of cooling units, each of said cooling units comprising a top having a hole by which it is attached to said ring and a threaded male portion, each of said cooling units further comprising a transparent tubular container having an exterior, a part of said tubular container containing a cavity, said cavity having a substantially constant cross section and a threaded female portion that is attachable to said male portion and said cavity being at least partially fillable with a freezable coolant material that is visible from the exterior of said tubular container, said tubular container and said coolant material being food safe and said part being sufficiently small in size so as to be totally submergible in the food or beverage in the single-portion food or beverage container.