The glass and fork symbol indicates that the product is approved for food use. It is the symbol presented in Annex II of the EU framework regulation 1935/2004, which can be used to indicate the food use of the contact material. Its use is voluntary and food use can also be reported in other ways.
Food contact materials ie. FCMs are materials and articles such as food packaging and containers, machinery to process food, and kitchenware and tableware that food comes into contact with during its production, processing, storage, preparation and serving.
Constituents that transfer from these materials into the food may affect the chemical safety of the food and affect human health, as well as the quality of the food, its taste and smell, and its appearance. To ensure a high level of food safety, all food contact materials must comply with Regulation (EC) No 1935/2004.
https://food.ec.europa.eu/safety/chemical-safety/food-contact-materials_en