“How long will ghee last” is an intricate question because generally, we find that milk made dairy products are quite sensitive in terms of storage.
But contrary to the common notion, ghee is unique in this aspect. Although made of milk, pure ghee is highly shelf-stable and you can easily store it in a common kitchen at least for 12 months from its date of manufacturing.
You can store pure cow ghee in your kitchen without the support of refrigeration. However, you have to maintain a few storage conditions for enjoying ghee’s shelf-stable feature.
How long will ghee last? There is really no fix rule or formula. But if you use unadulterated cow ghee with the aforementioned storage condition you will enjoy longer shelf life of your favorite dairy-staple.