Mason Jar Funnels

Simple canning jar funnels I designed for both small and large mouth jars. I printed these using PETG which can be made food-safe and withstands hot liquids. Print settings depend on your printer and the type of filament used, however I recommend setting up your slicer to print from outside to inside/start and stop layers on the outer wall, instead of the opposite which is usually default. This leaves a smooth surface on the inside of the funnel and keeps any zits or imperfections on the outside making it easier to clean and reducing areas where bacteria can hide.

Both funnels fit inside the neck of the jar. The wide end of the small mouth funnel is smaller than the wide end of the large mouth jar funnel but I didn't see a need to enlarge it. They both work well for their intended purpose but feel free to modify as you need. These funnels were created with Tinkercad and should be easy to modify there. Wall thickness is about 1.5mm for both funnels.