Which one of the followng is correct ? Butter is

Butter is scientifically classified as a water-in-oil emulsion [t2][t3]. It is formed through a process called phase inversion, where cream (an oil-in-water emulsion) is churned until the fat globules rupture and coalesce, trapping water droplets within a continuous fat phase [t2][t7]. According to the Codex Standard, butter must contain a minimum of 80% milkfat and a maximum of 16% water, existing primarily as this emulsion type [t5]. The stability of this system is maintained by natural emulsifiers present in milk, such as phospholipids and milk proteins like caseinate, which reduce surface tension between the fat and water phases [t2][t4][t7]. While butter contains crystallized fat that dictates its hardness and spreadability, it is not classified as a molecular solid or a supercooled oil in standard chemical nomenclature [t3][t6].

Sources

1. [1] https://pmc.ncbi.nlm.nih.gov/articles/PMC8160933/