One way.............empty the shopping list. Highlight all 26 batches, and then select "Add to List" which puts all the ingredients from the 26 recipes into the Shopping List.
Over 26 batches you may find items you could combine to reduce the SKUs and increase the grains to buy bulk.
It's also a good way to clean up your grains listings. I found I had a generic Munich, Munich 10L (Briess), and Munich I (Weyermann) in various recipes. Going forward I would use only Weyermann, so I removed the generic entry. This step helps with the inventory function later when removing items after use.