Sibu Potatoes This page first published: Apr 9, 2005 · Updated: May 18, 2018 · by CooksInfo. Copyright © 2021 · This post may contain affiliate links · This blog generates income via ads · Sibu Potatoes are round, with yellow skin and white flesh. They have a very high starch content of nearly 20%. They are grown for industrial processing into starch. Storage Hints Stores well.