This is a walk-through of the USDA's procedure for safely home pressure canning plain carrots
Pack into half-litre (US pint) jars or 1 litre (US quart) jars.
Processing time: half-litre (US pint) jars for 25 minutes OR 1 litre (US quart) jars for 30 minutes.
How to can carrots. www.healthycanning.com