If you are roasting a lot or cupping, this flexible plastic tray will make your roasting experience more enjoyable. There's a reason why these are standard in cupping labs. The main function is it's ability to fold down the center without it cracking. This makes it easy to funnel roasted or green coffee into bags or into your roast chamber. Anyone who has ever tried to pour roasted coffee from a Behmor drum into a coffee bag will understand. If you are setting up cupping sessions, these trays are a great way to display coffee. We aren't saying that these are a mandatory home roasting item. Actually, we think cheap-o deli tubs work good too but these trays are built to last, look great and are a great all-purpose coffee tool.