My city is very cold in winter. If I leave drinks outside my door for ten minutes, they'll get very cold. You don't even need a refrigerator to make them cold. I am going to make up three similar sentences about that.
(1) The drinks are very cold like they have been refrigerated.
(2) The drinks are as cold as if they have been refrigerated.
(3) The drinks are as cold as when they have been refrigerated.
I am not sure how to say this in the correct way. Please help me. Thank you very much for your help.