Australian legal note: This guide is intended for licensed distillers and commercial operators. Australian excise obligations can include licensing, security, reporting and record-keeping requirements. Check current ATO requirements for your operation.

Good records turn trial-and-error into repeatable results. Whether you are managing fermentation data, legally obtained spirit blending or licensed production, a clear batch log makes it easier to identify what worked and what needs changing.

Record keeping is also important for traceability. When a batch tastes different, finishes at an unexpected strength or needs reviewing later, your notes give you a reliable reference point.

Why keep a batch log?

A useful record lets you:

• Repeat successful batches
• Compare yeast performance
• Track fermentation time and temperature
• Confirm alcohol calculations
• Record dilution and blending ratios
• Identify faults and improvements
• Maintain traceability for licensed operations

What should you record before fermentation?

Start each batch with the basics:

• Batch name or reference number
• Date started
• Ingredient list
• Batch volume
• Yeast type and amount
• Nutrients or additives used
• Original Gravity
• Fermentation temperature target

If you are working with purchased neutral spirit for blending or flavouring, record the product, batch reference, starting ABV and volume.

What should you record during fermentation?

During fermentation, record:

• Temperature readings
• Gravity readings
• Dates of readings
• Visible changes or unusual aromas
• Any adjustments made
• Date fermentation was confirmed complete

This makes it much easier to identify whether a slow or incomplete fermentation was caused by temperature, yeast health or recipe design.

What should you record during blending and dilution?

For legally obtained spirits, track:

• Starting ABV
• Starting volume
• Water added
• Target ABV
• Flavouring or essence added
• Blend ratio
• Resting time
• Final volume
• Final ABV

Spirits Calculators

A simple batch record template

Batch name:
Date started:
Ingredients:
Starting volume:
Original Gravity:
Yeast and nutrients:
Fermentation temperature:
Final Gravity:
Estimated wash ABV:
Spirit source and starting ABV:
Water added:
Final ABV:
Flavouring or blend additions:
Bottling date:
Tasting notes:
Changes for next batch:

Why tasting notes matter

Technical readings are important, but taste matters too.

Keep notes on aroma, sweetness, body, alcohol warmth, flavour balance and finish. Over time, these notes become your best guide for improving blends and recreating favourites.

Frequently asked questions

How detailed should my records be?

Start simple. Record measurements, ingredients, dates and any changes. Add more detail as you refine your process.

Should I record water additions?

Yes. Water additions change volume, ABV and flavour balance, so they should always be recorded.

Do licensed distillers need formal records?

Licensed distillers may have specific legal obligations. Refer to the current ATO guidance relevant to your licence and operation.