The invention relates to an
aroma-diffusing paste, being: an
aroma reservoir (7), this
aroma being contained in liquid or
solid form within this paste (7), semi-permeable so as to be capable of: diffusing this aroma in gaseous form out of this paste (7), this aroma then being detectable by a
human nose, while preventing water from entering this paste (7) and / or while preventing water that has entered this paste (7) from exiting this paste (7) carrying the aroma in liquid or
solid form, and while preventing this aroma from exiting, in liquid or
solid form, from this paste (7), self-
adhesive so as to be able to attach to the bottom of a
screw cap (6) of a disposable
water bottle (1), preferably a disposable plastic
water bottle (1) with a capacity of between 0.2 and 2 liters, by simple pressure from a human finger. Figure for the abstract: Figure 1