Bags of grain used in brewing are often made of woven polypropolene, a strong plastic. Plastic microfibers from the bags might be getting into the beer of Great Lakes breweries.” Photo Lester Graham, Michigan Radio
04-GrainSack
Bags of grain used in brewing are often made of woven polypropolene, a strong plastic. Plastic microfibers from the bags might be getting into the beer of Great Lakes breweries.” Photo Lester Graham, Michigan Radio
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