Per 
The effects of SCP-4438.
Item #: SCP-4438
Object Class: Safe
Special Containment Procedures: SCP-4438 is to be kept in the staff canteen at site 19 and may be freely used by the kitchen staff, however use on other SCP-related objects is strictly forbidden.
Description: SCP-4438 is a non-serrated kitchen knife with the ability to transform any non-living object it cuts into a visual replica of itself made entirely of cake.
Once the knife has made contact with an object and penetrated more than two millimetres, the object is immediately converted. The cake contains layers of vanilla flavoured icing and has an intricate decorative covering of coloured fondant which gives it its appearance. The object's mass and physical properties will also change accordingly.
The slight change in the object's appearance and texture after its change in composition is imperceptible, due to a mind-altering effect which prevents those nearby from noticing it, with the difference only becoming apparent upon witnessing the object's new interior. The cake has shown to be non-anomalous and safe for human consumption. Testing has shown the base flavour of cake produced to be random. Flavours most commonly observed are vanilla, chocolate and lemon - with others such as fudge and fruitcake being seen more rarely.
While any inorganic matter can be converted, there are limitations to the types of objects which can be used. Attempts to use SCP-4438 on objects which lacked the necessary volume (such as a thin wire or a sheet of paper) gave mixed results, with the cake not having enough structural integrity to support itself due to being too thin. The maximum volume which can be converted at once is approximately 0.8 cubic metres. The knife has also shown to be ineffective on fluids unless they are kept within a solid container and obscured from sight at the time of conversion.
Addendum: After an accident which resulted in one cubic meter of the canteen floor being turned into cake, SCP-4438 is to be kept in a protective rubber sheath when not in use, and staff are to take extra care when handling it.
