The bottles used at ''Metro Pacific'' are manufactured at the Metro Pacific plant itself to avoid any possible contamination. Metro Pacific uses only Grade 1 PET bottles for its products. PET is safe for storing water and can be 100% recycled after use. The bottles are made using preforms, which go through a blowing process where the bottles attain the desired shapes and sizes. These bottles are then used for filling the purified water and are then mechanically sealed and packaged.