A canning implement sterilization rack includes a canning jar receiving grid, a ring or band receiving receptacle and a water bath which is supported in a cradle. The rack is adapted to be supported in an oven and is adjustable in width so that it can be used with a variety of oven sizes. In use, the rack's three areas each receive their intended ones of the canning implements. The rack is placed in an oven and is heated for a time sufficient to sterilize the components.