Hi Hazel,
Thanks for raising this on the community. It’s a great question! Yes, there is a way to do this, though it is a bit of a workaround for now. (There is a feature request for Could we have a report to show Stock on Hand by Batch Number please? which I would highly recommend voting on) Currently, though, you can use the “Products expiring soon” report found in Products > Tools & reports. You can set the expiry date far back in the future, and you will be able to see all your product quantities and where they are stocked by batch.
I hope this helps, but let us know if you need any more support at all.