1. A food capsule with a flavor gradient, comprising: a core comprising a concentrated flavor; an inner shell substantially surrounding the core comprising the same flavor in a lower concentration than exists in the core; and the outer shell, practically surrounding the inner shell, including the same flavor in a lower concentration than exists in the inner shell. 2. A capsule according to claim 1, in which the concentrated flavor is present in sufficient quantity to cause astringency, bitterness, burning and / or pain in the absence of previous exposure to the same flavor in a lower concentration. A food capsule with a flavor gradient according to claim 1, further comprising one or more additional shells, each of which surrounds the previous shell and includes the specified flavor in a lower concentration than the previous shell. A food capsule with a flavor gradient according to claim 3, wherein the total number of shells is at least five. A food capsule with a flavoring gradient according to claim 4, wherein the total number of shells is at least ten. A flavor capsule according to claim 1, wherein said core and shells include a substance selected from the group consisting of sugars, resins and polyols. The food capsule with a flavor gradient according to claim 1, wherein said capsule with a flavor gradient has a mass of less than 1 g. 8. A food capsule with a flavor gradient according to claim 7, wherein said capsule with a flavor gradient has a mass of less than 500 mg. Gradient food capsule�1. Пищевая капсула с градиентом ароматизатора, включающая:ядро, включающее концентрированный ароматизатор;внутреннюю оболочку, практически окружающую ядро, включающий такой же ароматизатор в меньшей концентрации, чем существует в ядре; ивнешнюю оболочку, практически окружающую внутреннюю оболочку, включающую такой же ароматизатор в меньшей концентрации, чем существует во внутренней оболочке.2. Капсула по п.1, в которой концентрированный ароматизатор присутствует в достаточно