Should last a few days in the fridge, I wouldn't keep it longer than a week.
It can be store in the refrigerator. However, try to use it as soon as possible. It's better when it's fresher.
Wrap and refrigerate, or freeze
Only if you have used fresh cream as a filling. In any event keep it in an air tight container to keep your cake fresh.
The only difference would be that the boxed cake has preservatives in it to keep it fresh. There is such a small amount that it shouldn't be a problem. Everything else we eat has something in it.
Cakes made with flour usually do not need to be refrigerated. They keep well for two or three days if kept covered at room temperature. Cakes also can be kept covered in the fridge for a week or so. Refrigeration is needed for any cake with filling containing eggs, such as a custard filling.
Yes it does need to be refrigerated because if not then the frosting (if on cake) will start to melt and coconut willturn brown. If you are not in a hot climate your cake will last longer if you don't put it in the fridge. Refrigeration makes cakes go stale quickly. Coconut will go brown only if it is fresh coconut, desiccated coconut should be fine.
not necessarily. It depends on the type of cake. If it's a cake that consists of main ingredients that you would typically store in the fridge (ie cream or cheese) then yes, definitely keep it in the fridge. If it's a regular baked cake, like a chocolate cake, then you could leave it out. Put it on a plate or platter, whatever you may have, and cover it with foil or saran wrap. Keep it in a relatively dry place and it should be fine for at least a week if you keep it covered.
You might succeed in this if you keep the cake in an tightly airtight container. However, it seems likely that it will still lose some crispness if you do this - a better way would be to put it in a really hot oven for 5-7 minutes before you serve it (if this is possible, depending on the type of the cake. Clearly this depends a lot on the types of filling/icing on the cake). If reheating the cake is not an option, try putting some packets of silicone packing gel (the little sachets used to keep household items from becoming damp) into the airtight cake container, making sure they do not come into contact with the cake. This should help maintain crispness.
In an airtight container.
The safest way to sterilize filling equipment is by autoclaving it. You have to keep the filling equipment in autoclave for 30 mins at 1
2 days
If you freeze it, it will last for years.
A frosted cake will stay fresh overnight without being stored in a container. In fact, the fat and moisture from the frosting will improve the cake.