To meet the safety requirements of the European Union, wooden shoes are subjected to safety shoe tests. Tests show that the wooden shoe is just as good and sometimes better than a steel toe work shoe.

	Cold test Subjected to extreme cold (-20° Celsius) for 30 minutes: Temperature in the shoe must not dip below 10° C.
	Heat test Subjected to extreme heat (sand at 150° Celsius) for 30 minutes: Temperature in the shoe must not exceed 22° C.
	Nail proof A nail is pushed into the sole; the pressure from below is: 75 kg.
	Waterproof Water absorption is measured.
	Pressure proof The wooden shoe is pressed between two steel plates, the pressure is applied up to 400 kg on the top of the shoe (the highest point above the instep) and up to 750 kg on the nose.
	Fall proof A bottle ax of 20 kg falls from a height of 50 cm on top of the wooden shoe.

The wooden shoes of Nijhuis B.V. come with a certificate of authenticity: