There is no reason they cannot produce both types of food products in that large facility. There are procedures that can/would be put into place to prevent cross-contamination just as there are in most large food manufacturing places. Using "weed butter" is not the same as something like peanuts which can be spread by dust and affect allergic people with even a micron of contamination. I doubt there will be any labels anytime soon that state "This product was made in a facility that may have caused exposure to weed"! lol.
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