# Journal

Source: https://www.drinkware-factory.com/blog/

- [Vacuum Food Jars & Lunch Boxes: Materials, Compliance and Care](https://www.drinkware-factory.com/blog/food-jars-lunch-boxes-safety-care-guide/) — What importers should check before launching insulated food jars and bento boxes — from food-contact rules to children's product requirements.
- [Choosing Tumbler Formats for Retail: 40oz, 20oz, 17oz and Beyond](https://www.drinkware-factory.com/blog/choosing-tumbler-formats-for-retail/) — How to build a tight tumbler range that covers commuters, gym-goers and gifting — without tying up cash in too many SKUs.
- [MOQ, Samples and Lead Times: Planning a Custom Drinkware Order](https://www.drinkware-factory.com/blog/moq-samples-lead-times-custom-drinkware/) — A realistic, step-by-step timeline from first inquiry to goods on the water — and the decisions that speed it up or slow it down.
- [Logo Decoration on Drinkware: Laser, Screen Print, UV, Sublimation & More](https://www.drinkware-factory.com/blog/logo-decoration-methods-drinkware-compared/) — Which branding method suits which product, artwork and budget — with a comparison table you can share with your design team.
- [How Vacuum Insulation Works — and How to Test Heat Retention Before You Order](https://www.drinkware-factory.com/blog/how-vacuum-insulation-works-heat-retention-testing/) — Double walls, a vacuum gap and a copper layer: what actually keeps coffee hot for hours, and a simple test protocol for incoming samples.
- [304 vs 316 vs 201 Stainless Steel: What to Specify for Drinkware](https://www.drinkware-factory.com/blog/304-vs-316-vs-201-stainless-steel-drinkware/) — A buyer's guide to the steel grades used in tumblers, bottles and food jars — and how to check you actually get the grade on your purchase order.