MCT Oil is an effective nutritional solvent, which is why it helps to move nutrients into the body. There is no relationship between what MCT Oil does to a synthetic petroleum based cup and what it does to your body. A poorly formed Styrofoam cup that is most likely not all the way cured, will certainly have BPA in it. Our bottles have the following statement listed on the label: All edible oils, including MCT Oil, react with certain plastics, including Styrofoam, and should only be used with utensils and containers made of metal, glass, ceramic, or safe HDPE plastics. Our oils are packaged in a non-BPA, recyclable HDPE bottle to reduce the environmental impacts of padding, packing and shipping glass bottles. MCT Oil does not absorb chemicals from HDPE.