Starfield features several resources with a variety of uses for crafting and more. While some standard items can be found with little challenge, other rare manufactured items like the Molecular Sieve are used to create better armor for hazard protection. The manufactured components can't be mined like gold or Antimony, but they can occasionally be found in industrial zones on missions and more. Players will likely find them on their travels. However, the most reliable methods of collecting Molecular Sieves in Starfield are outlined in this guide.