Chemist here. The use of propylene glycol in the clean/sterilize cycle is OK, it is related to 3 carbon glycerol and is not toxic and any breakdown product(glyc

Chemist here. The use of propylene glycol in the clean/sterilize cycle is OK, it is related to 3 carbon glycerol and is not toxic and any breakdown product(glycerol) is safe and edible. Ethylene glycol, a 2 carbon polyol, is metabolized to poisonous oxalic acid and 1000's of pets and other animals are killed every year. Most states require Bitrex, a very foul tasting additive to be added to various products people/animals might eat. https://www.bitrex.com/ https://www.bitrex.com/ There is a pet safe antifreeze based on Propylene Glycol, which I use, that is a good antifreeze and not toxic. So save a pet/animal https://safeantifreeze.com/ https://safeantifreeze.com/