In comparison to patties, the concentration of HAAs is very high
in pan-fried bacon slices. One reason for this fact is the weight loss
before pan-frying and increased weight loss during the pan-frying
process. The moisture content is very low in the fried slices, which
enhances the formation of HAAs. Furthermore, the thickness or
high surface to weight ratio of the slices is also an important factor
for the formation of HAAs. Normally, the slices only had a thickness
of 1–2 mm. This enhances the weight loss during the frying process.
Additionally, the fat is melted out and the meat part, containing
typical precursors such as creatin(in)e, free amino acids and
sugars, is enlarged, which may accelerate the HAA formation.
Although ingredients with a known inhibitory effect on HAA formation,
such as ascorbic acid and nitrite, occur in bacon, the concentrations
of MeIQx and PhIP are very high in this type of meat
product. Additionally, consumer preference plays a key role in
the daily intake of HAAs. If individuals like more well-done meat
products, such as crispy golden brown bacon stripes, the risk of a
higher intake of these harmful substances is increased.