# Using part-filled products & packaging a partial keg/cask with the final volume left in a vessel

As you are finishing the packaging process for a vessel, you may find that there is still some volume left that cannot fill an entire keg or cask. In this case, you may choose to transfer this remaining quantity to a part-filled keg or cask rather than waste it. This may be to sell as a part-filled keg product which can be sold to your taproom (or a customer if desired).

When packaging, you are always packaging into a specific "Product". For this reason, and to ensure there is never confusion between full and part-filled products, you need to create a part-filled version of your product.

## Creating a part-filled product

You can create a part-filled product by selecting the "This product is only part-filled" option when creating or editing a product.


![](https://storage.googleapis.com/breww-user-uploads/markdown-external/081f0ce5c5a987d63ce0264ede112fde83806c77fb91be53e1b942fade72a61f.png)

To create the part-filled version of an existing product, the quickest and easiest way would be to go to the main product, then click **Actions**, choose **Duplicate product** and save the duplicate product. Then you'll be taken to the duplicate product, so choose **Actions** -> **Edit**, enable the part-filled checkbox and click **Save**. Then you will have the part-filled version of that product.

## Packaging into a part-filled product

To package into a part-filled product, just select it during the packaging flow, and Breww will ask an additional question on how full the product is:

![](https://storage.googleapis.com/breww-user-uploads/markdown-external/b2c559ef426d0a773b495beffde54de39496267582b366e4e1d912e10ee4c8d1.png)

You can then manage that product just as you would any other, with the ability to edit prices, add to invoices, deliver to customers, add aliases, package from it, etc.

## **Assign a part-filled container to a product**

If you are packaging from containers via the 'Package from containers' tool, this may result in a container that is part-filled. However, you cannot assign this to an order until it's assigned to a part-filled product. Provided you have followed the instructions on setting up a part-filled product, you can select the **Product assigned to** button on the container page for your part-filled container. This button will allow you to **Assign a part-filled container to a product.** You can then select the appropriate part-filled product from the drop-down menu here. This will now allow you to add this container to an order.

![](https://storage.googleapis.com/breww-user-uploads/markdown-external/ed17964d14bb8d3fb212953b1a22b69448c82070edd673624fed97553121ae9c.png)

Not sure how to package from one container into another? You can find more information in our help guide: [Packaging](https://breww.com/docs/racking_packaging/)