As a daily allowance of dry rations, each German soldier, among other things, was entitled to 250 grams of bread or crackers. These crackers were called Zwieback or Feldzwieback.
They were very hard and dry, which contributed to their long-term storage. The crackers had a characteristic rectangular shape, with two round recesses in the upper part. Approximate dimensions of the cracker: 25x15x10 mm.
The composition of crackers is given in the instructions for chefs of non-commissioned officers "Der Feldkochunteroffizier".

According to the instructions of H.Dv.320/4 Wehrmachts Verwaltungsvorschrift für Heeresverpflegungs dienstellen, in field bakeries, crackers could be Packed in paper or cellophane bags, but the main type of packaging for Zwieback crackers was a Special Zwiebackbeutel cracker bag.

According to the instructions of H.Dv.320/4 Wehrmachts Verwaltungsvorschrift für Heeresverpflegungs dienstellen, in field bakeries, crackers could be Packed in paper or cellophane bags, but the main type of packaging for Zwieback crackers was a Special Zwiebackbeutel cracker bag.

Period photos:

Some collectors argue about whether the cracker bags are part of the statutory equipment of German soldiers. The argument in favor of the fact that Zwiebackbeutel is an element of equipment is the marks on the issue of these in the soldier's books Soldbuch, which are quite common. In addition, often the delivery of dry bags occurred several times, for example, when a soldier moved to other parts.