When we talk about the unique trademarks, most people imagine logos, words or symbols. However, the world of intellectual property has grown much to adjust non-traditional marks such as sounds, colors, holograms, scents and now the taste as well. Trademark registration for a taste mark indicates protecting a particular taste that becomes uniquely linked with a brand or the product.
... https://www.kanakkupillai.com/trademark-registration-for-taste-mark