British Food Journal Volume 31 Issue 7 1929

35. Milk which does not come up to requirements is returned to the farmers, and this rule appears to be more stringently enforced by co‐operative societies than by private firms, the control over the farmer being greater in the case of the former than the latter. In most cases, morning milk and the milk of the previous evening arrive in the early morning at the creamery. These milks are not mixed at the farm but arrive in separate cans, the morning milk being warm and the evening milk cold on arrival. It may here be noted that milking is done at twelve‐hour intervals (5 a.m. and 5 p.m.) so that the composition of morning and evening milk shows very little variation. Where a creamery condenses full cream milk, morning milk is the milk preferred, and when possible this is the milk which is condensed.