Best before dates are a very rough estimate of the spoilage of fish. However, the fish is still thrown away most of the time before it is actually spoiled. To prevent this food waste, we are developing another way to quantify the fish freshness.
We are designing a small, passive device, ±2x2 cm, to quantitatively determine the freshness of fish by measuring certain chemicals in the fish using an optical measurement. The test is as simple as dropping a few droplets of fluid onto the chip. With this, the food waste in the fish/food market can be reduced and the best before dates can be removed from the packages.