Packaging Made Simple.
A practical introduction to the world of rigid packaging. Learn how bottles, jars, caps, closures, materials and manufacturing processes work together to create packaging solutions.
Designed for people who are new to packaging, with explanations, helpful examples and Knowledge Checks that reinforce what you've learned.
Explore the Bottle School Curriculum
Five learning sections guide you from basic bottle terminology to practical packaging decisions. Open a section to view its lessons and Knowledge Check.
1 Section One Understanding Bottles Learn the basic parts, shapes, capacities and measurements of rigid packaging.
2 Section Two Materials & Compatibility Explore packaging resins, sustainability, recycling and product compatibility.
3 Section Three Closures & Functionality Understand neck finishes, caps, pumps, dispensing systems, liners and seals.
4 Section Four From Design to Finished Package Learn how bottles are manufactured, decorated, checked for quality and supplied.
5 Section Five Putting Knowledge Into Practice Apply what you've learned to packaging selection, planning and real-world projects.
Bottle School Quick Reference
Useful packaging information whenever you need a refresher.
Common Packaging Measurements
Frequently used conversions for discussing bottle capacities and packaging dimensions.
8 US fl oz = approximately 237 mL.
16 US fl oz = approximately 473 mL.
32 US fl oz = approximately 946 mL.
1 centimeter = 10 millimeters.
1 liter = 1,000 milliliters.
1 gram = 0.001 kilograms.
Fluid ounces describe volume, while ounces used for weight describe mass. Confirm which measurement the customer is requesting.
Common Resin Identification Codes
Resin Identification Codes identify plastic material families. A resin code does not by itself guarantee that a package is recyclable in a local program.
Bottle School Resource Center
Packaging education doesn't end with the lessons. Explore practical reference guides designed to help you understand industry terminology, manufacturing relationships, freight and logistics, and real-world packaging challenges.
Begin with our structured Bottle School lessons to build a strong foundation. Then return to these reference guides whenever you need to understand a term, coordinate a project, or work through a packaging question.