These are tough to interpret...sometimes it says "manufactured on equipment used to process wheat, nuts, dairy" and other times it just specifies in a facility...now, the equipment sounds scarier...although one would think they MUST wash it down pretty thoroughly just to ensure the quality of the product, between making one thing and the next...still, it is reasonable that IF the machinery has little crevices, etc., that wouldn't be reached easily by whatever washing methods they use...it is entirely conceivable that there would be some slight risk of cross-contamination.
When they just list that it's processed in a FACILITY that processes wheat, etc., well, that might not be as scary, although unless one SEES that facility...i.e., are there people running around dusted with flour...are there clouds of flour in the air...etc., or is it just that something like a cracker is added to something else way across the building?????
It's hard to know what to make of these disclaimers...often one has to call the place and ask a bunch of questions.
To me, right now, the easiest thing is to avoid whatever I can...so I think for now I might just try to get along wihtout the yeast...and if that makes me go nuts, I might call the company and ask them exactly what that means.
I do buy a big bag of mixed veggies from Costco that has the alarming disclaimer-"Processed on shared equipment that processes wheat, nuts, and dairy." These veggies are not exactly PROCESSED...other than having been chopped down to size...I buy them for now...but I cringe whenever I do, wondering how much chance (one in a million, one in a thousand, one in a hundred??????) there would be of any cross-cotamination here...plus, though, I feel a little better that I can throw these frozen veggies into a colander and rinse them off pretty well before cooking them. The yeast...well, ya can't rinse that off
--so maybe I'll just try for a while without and see if I miss it that much.
Oh...I seem to be rambling...thanks, though, for that info.