ImStillMags wrote:
>
> How can you have a tube of umami? Umami is another dimension of
> taste, not a thing.

Salt is both a taste and an item. Sweet is also both a taste and an
item. Umami is detection of a set of amino acids mostly glutamate. The
paste should be made of a mixture of animo acids primarily glutamic acid.

More likely it's a reduced soy and mushroom mush.