How do you store sour mash?

Answered by Willie Powers

Storing sour mash is an important part of the whiskey-making process, as it allows you to preserve the back-set for future use. There are various methods you can use to store sour mash, but one popular and convenient option is to freeze it in gallon ziplock bags.

To start, you will need to prepare your sour mash as usual. Once you have completed the fermentation process and have extracted the liquid for distillation, you can proceed with storing the back-set.

First, take gallon-sized ziplock bags and pour about two quarts of the sour mash into each bag. It’s important to leave some extra space in the bag to allow for expansion when freezing. This will ensure that the bag doesn’t burst or leak during the freezing process.

Seal the ziplock bags tightly, ensuring that there is no air left inside the bag. This will help prevent freezer burn and maintain the quality of the sour mash. You can use a straw to suck out any excess air before sealing the bag if needed.

Once the bags are sealed, lay them flat in the freezer. It’s a good idea to place them in a single layer, so they freeze evenly and quickly. This will also make it easier to remove the frozen sour mash when you’re ready to use it.

When you need to use the sour mash, simply take a bag out of the freezer and let it thaw for a few minutes. The frozen sour mash will easily peel away from the bag, thanks to the plastic material. You can then toss the frozen sour mash brick directly into the kettle with your mash water.

By freezing the sour mash in ziplock bags, you not only preserve the back-set but also make it convenient to use in future batches of whiskey. The frozen sour mash can be stored for several months, allowing you to keep a constant supply for your distilling needs.

It’s worth noting that the quality of the sour mash may gradually degrade over time, so it’s best to use it within a reasonable period. However, properly stored frozen sour mash can still produce excellent results and contribute to the distinctive flavors of your whiskey.

Freezing gallon ziplock bags of sour mash is a practical and effective method for storing the back-set. It allows you to preserve the sour mash for future use and conveniently use it in your distilling process. Give it a try and see how it enhances the flavor of your homemade whiskey. Cheers!