You put it into a 15-liter vessel, about three gallons, and it'll cool it down to just above freezing -- three degrees above freezing -- for 24 hours in a 30 degree C environment.
O pores nun recipiente de 15 litros, e o arrefriará ao punto de conxelación, tres graos por riba, durante 24 horas nun ambiente a 30ºC.