30 days. Silver silk rolls have a high sugar content, high sugar environment can inhibit the growth of microorganisms, thus extending the shelf life to a certain extent, however, the shelf life of silver silk rolls is still only 30 days, this is mainly because of the high oil content of silver silk rolls, the oxidation of the oil is faster, prone to produce a halo flavor and other off-flavors, and therefore is not suitable for long time preservation.