Bouillon cubes and stock concentrates are dehydrated products containing salt, flavor enhancers, and often vegetable fats, resulting in a saltier, less nuanced flavor compared to homemade stock, which is made from simmering bones and vegetables for a richer, more complex taste.
Homemade stock is created by simmering animal bones (chicken, beef, fish) and vegetables (onions, carrots, celery) in water for an extended period. This process extracts collagen from the bones, which converts to gelatin, giving the stock a rich body and mouthfeel. The slow simmering also draws out subtle flavors from the bones and vegetables, creating a complex and layered taste profile. Homemade stock typically contains no added salt or preservatives, allowing you to control the sodium content and flavor profile in your dishes.
Bouillon cubes and commercial stock concentrates, on the other hand, are manufactured products designed for convenience. They are typically made by dehydrating a mixture of salt, monosodium glutamate (MSG), hydrolyzed vegetable protein, vegetable fats, and artificial flavorings. While they can provide a quick and easy way to add flavor to dishes, they often lack the depth and complexity of homemade stock. The high salt content and artificial additives can also result in a less natural and sometimes overpowering flavor. The gelatin content is usually minimal or non-existent, leading to a thinner consistency compared to homemade stock.
When using bouillon cubes or stock concentrates, start with less than the recommended amount and taste as you go. You can always add more to achieve the desired flavor intensity, but it's difficult to correct a dish that's already too salty. Consider using low-sodium versions to better control the salt content.