(eng): The objective was to investigate the influence of the different vacuum (45 and 40 kPa) on teats in 9 dairy cows evaluated by the changes of teat surface temperature. The teat thermal profiles were recorded immediately before milking, immediately after milking, and 2 minutes after milking. During milking with vacuum 40 kPa the teat surface temperatures were recorded significantly lower than during milking with vacuum 45 kPa particularly immediately after milking.