Yes, our products can be trusted, they have earned the required levels of food safety certification. All products have passed SGS EU 10/2011 and EN 1186-1/9/14:2002 food safety testing methodology (tolerance to high temperatures and fatty substances, and absence of heavy metals). PLA is fairly unsuitable for very high temperature applications. It has been approved for use in manufacture of disposable products as the temperatures of any hot drinks or food have to be safe for humans in order to avoid scalding. We would not recommend placing hot liquids in clear PLA cups, as these are designed for cold drinks, and we would not recommend using any PLA-lined ValueCart products in a microwave as the high temperatures may separate the PLA lining. All our products are free of petroleum-based plastics and all inks are food-dyes.