Buying mason jars in bulk can lower the price up to $0.21 per jar, as of 2015. Some sellers require large quantity purchases before discounts kick in; however, Uline.com offers a bulk discount starting with three cases of jars.
Sellers generally offer mason jars by the case of 12, and their bulk discounts vary. Freund Container & Supply starts discount prices at 10 cases whereas Fillmore Container’s discounts start at 60 cases. SpecialtyBottle.com is unique because they sell mason jars loose and by the case. SpecialtyBottle.com offers discount prices at 120 jars and is a greater per jar discount than Freund and Fillmore at $0.21.