The invention relates to a method for sterilizing raw, unheated honey, wherein the raw, unheated honey is sterilized by ozonizing it by using an ozone generator. The invention also relates to a honey-based wound care preparation, wherein said preparation comprises raw, unheated ozonized honey that has been ozonized by a method according to the invention. The invention also relates to a wound care treatment product comprising a honey-based preparation, wherein the said wound care treatment product comprises a preparation according to the invention. Finally, the invention relates to a biscuit based on honey and food fibers and/or by-products of food fibers, wherein the biscuit is prepared from ozonized food fibers and/or by-products of food fibers and raw, unheated ozonized honey that has been ozonized by a method according to the invention.