Table 3.

OTA and STC levels in washing water and in grated hard cheese samples after wet cleaning.

Wet Cleaning Technique	OTA µg kg−1	STC µg kg−1
Washing water T0	0.44 ± 0.03	<0.05
Washing water T1	0.39 ± 0.07	<0.05
Grated cheese 1	<0.05	0.07 ± 0.00
Grated cheese 2	0.19 ± 0.01	0.10 ± 0.02
Grated cheese 3	0.74 ± 0.11	0.49 ± 0.074
Grated cheese 4	0.42 ± 0.80	0.10 ± 0.03
Grated cheese 5	<0.05	0.10 ± 0.03

T0, T1 = cleaning water sampled before and after wheel cleaning, respectively.