The canning log: What to write down for each batch

Updated October 17, 2026

A canning log is your record of what you’ve canned: each batch’s product, processed date, recipe source, yield and notes. You might call it a canning journal or notebook. Keep it alongside your inventory so you can look back at a batch and check how many jars remain.

You remember making raspberry jam last summer, but was it the recipe in the book or the one you bookmarked? And how many jars did that batch fill?

A canning log keeps those details together. Months later, you can find the source, check the yield, or read the note you left about making it again.

We’re building The Cantry to keep those records on your phone and link them to your jars. If you prefer a handwritten notebook or a binder of printed pages, you can keep a useful log there, too.

What to record on canning day

Give each batch its own entry. A batch is the jars of one product from one canning session; another day of making the same recipe gets another entry.

These details make the record useful later:

• Product and processed date. What you made and the date you processed it. Use a product name you’ll recognize when you come back to it.
• Recipe and source. The recipe’s printed name, the publisher or publication, and a page number or web address.
• Ingredients. What you used and the amounts, including any substitutions you made.
• Method and processing details. The method, pack, altitude, headspace, processing time, and pressure and vent time where applicable, recorded as you carried them out.
• Jar sizes and quantity. How many jars you filled in each size, alongside the yield stated in the recipe.
• Jar location. Where you put the jars away.
• Notes. Anything you want to remember about that canning day.

Your safe and tested recipe gives the canning instructions. The log keeps your account of what you did; it doesn’t check those details or tell you what values to use.

If you’re setting up a notebook or making a template, what to record in a canning log or journal groups the fields into a layout you can follow.

Make the recipe easy to find again

“Tomato sauce recipe” won’t help much if you’ve tried several. Write down the name as it’s published and enough of the source to find it again: a book title and page, a publication number, or a web address.

The National Center for Home Food Preservation and your local Extension office are places to find published recipes. Your entry points back to the safe and tested recipe you followed; there’s no need to copy its instructions into every batch record.

Keep the source with each batch, even if you use that recipe often. If someone passed a recipe along, include the original source if you know it. When you don’t know, leave a note saying so rather than guessing.

Leave room for notes after you open a jar

Some of the notes you’ll want next summer won’t be available on canning day. You might find that the smaller jars were a better fit for dinner, or that everyone kept reaching for a particular jam.

Add those observations to the batch entry, with the date you opened the jar. “Make this one again” is easier to act on when it’s beside the recipe you meant.

The yield is worth looking back at, too. Comparing the recipe’s stated yield with the jars you filled gives you a record of what that recipe produced in your kitchen. Notes about anything you noticed during processing can stay with the same entry, in your own words.

Choose a format you like using

A notebook is easy to keep on the counter, and you can give a batch as much space as it needs. Leave some room for later notes. If you want the same prompts every time, a printable in a binder can save you from drawing up a new page for each batch.

A spreadsheet suits you if you’d like to search or sort across several seasons. Give each batch an entry, with columns for the details you care about. Longer notes may be easier to keep on a separate tab or page linked to the batch.

With an app, check whether recording a batch also updates the inventory. That connection can save you from entering the jars again on a separate list. You’ll still record what you made and update the count as jars are used.

If you keep your log on paper, our printable canning inventory sheet can sit beside it. The sheet tracks what’s on hand; your log holds the recipe and fuller batch notes.

Connecting the log to your jars

Your log tells you what you made over time. Your canning inventory tells you how many jars remain and where they’re stored. The product and processed date help you match an inventory entry to its batch record.

In The Cantry, logging a batch adds its jars to your inventory. Mark a jar used when you open it, give it away, or discard it, and the count goes down. Gifted or discarded can be added as an optional reason.

The recipe source and batch details stay with the record exactly as you entered them, so you can find them again after the last jar is gone.