Cleaning a glass coffee storage jar is generally quite easy and straightforward. Here are some steps you can follow:

Empty the jar: Remove any remaining coffee grounds or beans from the jar by pouring them out or using a spoon or scoop.

Rinse with warm water: Rinse the jar with warm water to remove any loose residue. This will help prepare the jar for a more thorough cleaning.

Use dish soap: Apply a small amount of mild dish soap to a sponge or soft cloth. Gently scrub the interior and exterior of the jar, paying extra attention to any stained or sticky areas.

Rinse thoroughly: Rinse the jar thoroughly with warm water to remove all traces of soap. Make sure there are no lingering suds.

Remove stubborn stains or odors: If there are stubborn stains or lingering coffee odors, you can try a few additional methods. For stains, you can create a paste using baking soda and water, apply it to the stained area, and gently scrub before rinsing. To remove odors, you can fill the jar with a mixture of water and a small amount of white vinegar or lemon juice, let it sit for a few hours, and then rinse thoroughly.

Air dry: After cleaning, allow the jar to air dry completely. Placing it upside down on a clean dish rack or towel can help ensure that any remaining water droplets drain out.

Store in a dry place: Once the jar is completely dry, you can store it in a dry and clean location until you're ready to use it again.

By following these steps, you should be able to keep your glass coffee storage jar clean and ready for use.