4 oz Glass Muth Jars w/ Corks4 oz. glass Muth jars are one of the original honey jars that are commercially available. Their tapered neck and embossed edges add the extra style that customers appreciate. It holds approximately 4 oz. (113 grams), or 1 3 cup of honey. Because Muth jars are sold for use with honey, they are advertised as 4 oz jars, even though they hold 2. 67 fluid ounces. Corks are included with the muth jars. Use this honey jar calculator to estimate how many jars