As birthday cakes can be any type of cake nowadays, you can choose from: fresh milk cake, mousse cake, cheesecake, chocolate cake, ice cream cake, fruit cake, and even art cake, sugar cake, pottery cake, and so on, the freshness period varies greatly. Some of them need to be eaten immediately, some can not be frozen, only refrigerated, some can be frozen for many days.
Take the most common and traditional milk fruit cake as an example, depending on the type of fruit used for decoration, the freshness time limit also varies greatly, and in principle, the sooner the production is completed, the better.
Generally speaking, from the point of view of taste, put the refrigerator to keep fresh for 1~2 days, the shelf life of 3 to 5 days is not a problem.
From the safety point of view: in more than 20 degrees room temperature conditions, not more than half an hour is best.
In conditions below 20 degrees above 5 degrees, no more than two hours.
At 0-5 degrees, no more than 24 hours is best.
At 0 degrees, no more than 72 hours, otherwise the decorated fruit on top may freeze.