1
Milk source
The milk source is named by household group, not by individual.
Tin record
Milk group, churning day, lab result.
Dairy households in Sahiwal and Okara churn butter into ghee for local sale. We record each tin's milk source, churning day and purity test, so buyers can see the ghee is made from pure butter.
2
Churning day
The churning day is written and the batch is held until the test is passed.
3
Purity test
A lab purity test is written on each batch before it is tinned.