referring now to the drawings , fig1 shows a top plan view of the magnetic cutting board 10 , showing upper layer 12 . upper layer 12 is preferably made from high - density polyethylene or low - density polyethylene . it should be understood that upper layer 12 may be made from any strong and preferably flexible material , for example leather , polypropylene , or other plastic material . upper layer 12 is preferably flexible , however , is may be made from rigid material , as well . upper layer 12 is required to facilitate using the invention with kitchen knives . upper layer 12 must be sufficiently durable to withstand repeated exposure to knife blades . however , upper layer 12 should not be so hard as to quickly dull knife blades . a cutting board made , for example , solely from a flexible magnet would quickly dull a knife . in addition , upper layer 12 must be sufficiently lightweight so that magnetic cutting board 10 will remain in place on vertical surfaces due to magnetic attraction . fig1 shows magnetic cutting board 10 in a generally rectangular shape with longer edges 22 and shorter edges 24 . fig1 shows magnetic cutting board 10 with curved corner edges 26 . as shown in fig3 , magnetic cutting board 10 may also have square corners . fig2 shows upper layer 12 co - extensively affixed to magnetic layer 14 . upper layer 12 and magnetic layer 14 are preferably affixed to each other using pressure sensitive adhesive , although many other methods may use used . for example , upper layer 12 and magnetic layer 14 may be affixed to each other using thermo - bonding , chemical welding , or any other form of adhesive . in addition , upper layer 12 and magnetic layer 14 may be thermoformed to form a magnetic cutting board of any desired shape . the preferred method for manufacturing the magnetic cutting boards is to begin with sheet or rolled stock of the flexible , durable material and sheet or rolled stock of the flexible magnet . the two sheets are laminated , preferable with pressure sensitive adhesive , and die cut . magnetic layer 14 is preferably a flexible magnet , although rigid magnets may be used as well . there are many types of flexible magnets available , for example flexible magnet 14 may be resinous plastic such as polystyrene , polypropylene , acrylic , or the like , having finely divided magnetic particles distributed throughout the body . flexible magnet 14 may be single - poled or preferably multi - poled . single - poled magnets are magnets in which one side has a “ north ” magnetic attraction and the other side has a “ south ” magnetic attraction . these single - poled magnets tend to repel each other if , for example , the “ south ” sides of two magnets are placed adjacent to each other . multi - poled magnets , on the other hand , contain both “ north ” and “ south ” poles on a single side of the magnet . multi - poled magnets have stronger magnetic attraction per weight than single - poled magnets due to the complex magnetic field generated by the multiple poles . therefore , multi - poled magnets can be lighter than single - poled magnets and still generate a strong magnetic attraction . in addition , multi - poled magnets will not magnetize adjacent objects . in the preferred embodiment , magnetic layer 14 is co - extensive with upper layer 12 . however , magnetic layer 14 may cover less than all of the bottom surface 28 of upper layer 12 . magnetic layer 14 must be of sufficient size and magnetic attraction so that magnetic cutting board 10 may be vertically affixed to a vertical , magnetically - attractive surface 16 , as shown in fig5 . in the preferred embodiment upper layer 12 and magnetic layer 14 are flexible so that food may be easily transported on the cutting board . after cutting food on the magnetic cutting board the cut food may be transported on the cutting board to , for example , a cooking pot . as shown in fig3 , cutting board 10 is sufficiently flexible so that it may be bowed to prevent spillage during food transport and to allow the cut food to easily slid into the cooking pot . as shown in fig4 , the magnetic cutting boards may be stacked on top of each other for convenient and compact storage . the use of multi - poled magnets facilitates stacking the magnetic cutting boards . because the multi - poled magnets are self - aligning the magnetic cutting boards may be placed on top of each other , will remain in place , and will not repel each other due to the multi - poled magnets . fig5 shows a stack of magnetic cutting boards 10 on a vertical surface , 16 . in fig5 , the vertical surface is a refrigerator . however , vertical surface 16 may be any vertical surface to which magnets are attracted , for example , an oven , dishwasher , or microwave . the magnetic cutting boards may also be stored without slippage on metal countertops . fig5 shows a stack of five magnetic cutting boards . it should be apparent that five cutting boards are shown as an example only , and that one or more cutting boards may be magnetically attracted to vertical surface 16 . fig6 shows another embodiment of the invention . upper layer 12 has both a top surface 26 and a bottom surface 28 . in this embodiment , a plurality of magnets 18 are embedded in the bottom surface 28 of upper layer 12 so the magnets 18 and bottom surface 28 are flush . magnets 18 must be of sufficient size and / or quantity to allow both vertical and horizontal stacking of magnetic cutting boards 10 . magnets 18 may be rigid or flexible magnets and may be placed in any position in upper layer 12 . fig7 shows another embodiment of the invention . in this embodiment , magnets 18 are embedded in bottom surface 28 of upper layer 12 so that the magnets 18 protrude from bottom surface 28 . magnets 18 must be of sufficient size and / or quantity to allow both vertical and horizontal stacking of magnetic cutting boards 10 . magnets 18 may be rigid or flexible magnets and may be placed in any position in upper layer 12 . the invention may be made in any variety shapes or sizes , and may have different colors or graphic designs on top surface 26 , as shown in fig8 . one embodiment will have a stack of five magnetic cutting boards in each of the five colors recommended by the national and international food safety guidelines : blue for seafood ; green for vegetables ; red for meat ; yellow for poultry ; and white for fruit . other embodiments will have a stack of two , three or more magnetic cutting boards with a variety of colors or designs . alternatively , a stack may contain a plurality of cutting boards with the same color or design to complement the color or design of the kitchen . also , the stack could contain , for example , a plurality of football shaped cutting boards with a football design for tailgate parties . it should be apparent that the magnetic cutting boards may come in a stack of any number , shape , color , or design . the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof . the embodiments disclosed in this application are to be considered in all respects as illustrative and not restrictive , the scope of the invention being indicated by the appended claims rather than by the foregoing description , all changes that come within the meaning and range of equivalency of the claims are intended to be embraced therein .
the invention is a method of storing and using a flexible magnetic cutting board made from a flat , flexible , durable top layer adhered to a flat , flexible , multi - poled magnetic bottom layer comprising the steps of storing the cutting board on a magnetically attractive surface , removing and placing the cutting board on a horizontal surface , cutting food on the cutting board , lifting and bowing the cutting board to transport food to a receptacle .