I understand and appreciate that you want the terms used to be correct. I feel that the tone you used probably rubbed people the wrong way. Had you for example corrected me and given me the correct terms and definitions, I'm quite sure people would have appreciated the gesture. Actually, even up to now I'm not 100% sure what I should have used :). Additives, preservatives, ...?

BTW, interestingly in a previous life I studied chemistry... Only always in French