Using frozen marshmallows as an ice pack is not recommended. While marshmallows may freeze and become cold, they are not designed or suitable for use as an ice pack for several reasons:
Limited effectiveness: Marshmallows have a low water content, so they do not retain cold temperatures as effectively as other materials designed for use as ice packs. Their small size also means they won't provide sufficient cooling for an extended period.
Messy and unsanitary: As marshmallows thaw, they will become sticky and may leave a sugary residue, making them messy to handle. This can be unhygienic and could attract insects or pests.
Inadequate insulation: Ice packs are usually designed with insulating materials to keep the cold contained. Marshmallows lack proper insulation, which means they will quickly lose their cold temperature and may not effectively cool the area you want to treat.
Shape and structure: Ice packs are typically designed to conform to the shape of the body part they are applied to, providing even cooling. Marshmallows are not suitable for this purpose and may cause discomfort when applied to the skin.
For effective and safe cooling, it is best to use purpose-built ice packs or frozen gel packs specifically designed for medical or cooling purposes. These products are typically more efficient at retaining cold temperatures and are designed to be safe for direct contact with the skin.