Flour is a common cause of occupational asthma in bakers and also in millers and animal feed processors. The exposure levels are often relatively high. A proportion of bakers with occupational asthma to flour have negative IgE to flour and other relevant allergens. Many bakers are also exposed to enzymes (Alpha amylase being the most common) which are more potent allergens.
Pastry Cooks, Pizza Makers and similar food workers are often exposed to flour without the enzymes.
The Oasys Audit scheme started midway through 2010 and collects agents typed in through the Oasys program. The years before 2010 show old data entered during 2010 or later and are likely to have many fewer notifications. We expect Oasys to become more widely adopted as time goes by so increasing notifications does not necessarily mean an increasing problem.