From Raw Milk to Packaging: How Production Logs Help You Trace a Batch's Path

 On a production floor, you can log every single operation and still lose track of one specific batch's path. Receiving raw materials, processing, and shipping are all recorded in different logs. The records exist, but to answer the question "what was this product actually made from?" you need to know how those records connect to each other.

This question becomes especially important during quality checks. If a complaint concerns a finished product, you need to find out which raw material went into it and what else was made from that same material. If a problem is found in the raw material itself, you have to search through all the products it ended up in.

The connection between stages can be preserved right in the production logs: alongside each new batch, you record the number of the batch it was made from. Digital production logs from Log Sheet let you keep these records and configure the fields for your own process. Let's look at how this works using cheese production as an example.

In cheesemaking, milk goes through several stages:

• milk receiving
• milk and mix preparation
• cheese cooking
• drying and ripening
• smoking, if the process calls for it
• packaging and labeling

What's Behind a Finished Batch's Number

For example, in the packaging log, a batch of cheese might have two cooking batches listed. That means cheese from two different cooking batches was used for it.

One packaging batch — two cooking batches. The batch numbers in this example are configured for this specific production process.

Both cooking batches were made from the same mix. And the log has other cooking batches with that same mix number too. While we're tracing this particular packaging batch, only two records matter to us; if we needed to check the mix itself, the rest would matter too.

Several cooking batches share one mix number.

The mix itself was made from milk from two batches. Their numbers are in the milk-prep log, and the records of their receiving are in the receiving log.

The mix contains milk from two batches.

Records of both batches being received.

Now you can see how the batches merged and split: milk from two batches went into the mix, several cooking batches were made from it, and cheese from two of those cooking batches was used for the finished batch in question. These connections are preserved right in the production records.

The connections between stages can also be shown visually — as a batch tree. The image below shows a different demo path: it illustrates how milk moves through the mix and cooking stages into further processing.

A fragment of a batch tree. This is a separate demo example with different numbers and dates.

If Questions Come Up About the Milk

Suppose a check finds a problem in one of the milk batches. It won't stop at the one finished batch you'd normally look at: that milk went into a mix, and other cooking batches were made from that mix too. You need to find out which finished products ended up containing cheese from each of them.

How precisely you can trace this depends on how completely and promptly the batch and operation records were entered. If the source batch wasn't recorded at even one stage, reconstructing the connection from dates and equipment numbers alone becomes unreliable.

In Log Sheet, logs can be configured for the stages of your specific production process, and they can capture not just the operations performed but also the connections between batches. That data can then become the basis for traceability reports.

Cheese is just an example here. Other production processes will have their own operations and logs, but the principle stays the same: the record of every new batch should show what it was made from. Then, during a quality check, you can trace a product's path and identify which other batches need attention.

Learn more about Log Sheet's digital production logs.