| Sabor de salmuera, sabor salado | Briny flavour (of butter) |
| Sabor mohoso, moho | Mouldines (of cheese) |
| Sal para mantequilla | Butter salt |
| Sala de ordeño | Milking bail, milking parlour |
| Sales estabilizadoras | Stabilizing salts in milk |
| Secreción láctea | Milk secretion |
| Sementales de ganado lechero | Sires of dairy cattle |
| Semi-nata en polvo, semi-crema en polvo | Half-cream powder |
| Sólidos sin grasa de la leche, extracto seco magro de la leche | Non-fat dry milk solids |
| Sonda para la toma de muestras de queso, sonda de queso | Trier for sampling of cheese, cheese trier |
| Sorbete, helado de agua | Sherber (milk sweetener and fruit flavouring) |
| Spray de leche en polvo desnatada | Spray skimmed milk powder |
| Sucedáneos de la leche, imitaciones de leche | Imitation milks |
| Suero de leche | Unseparated whey |
| Suero de leche | Whey, lacto-serum |
| Suero de leche condensado | Condensed whey |
| Suero de mantequilla cultivado, leche de manteca acidificada | Cultured buttermilk (Sour milk, produced by acid-producing streptococci in skim milk) |
| Suero lácteo | Milk serum |
| Sustancias colorantes | Colouring matters |