1. What is the shelf life of this product? A: Under the recommended storage conditions (sealed, cool, dry, away from pollution), the shelf life of ZOILSIL-GZ150 is 24 months. After opening, it should be sealed and used up as soon as possible. 2. Do you provide technical support for process optimization? A: Yes. Our professional technical team can provide on-site technical support, optimize the oil refining process according to the customer's oil type and production equipment, and improve refining efficiency and product quality.