E webatara ErFra VoorKiemSystem (VKS) nke Erik Juurlink na Frank Hoitink n'ahịa dị ka ihe ọhụrụ n'afọ gara aga. Nke a bụ akwa mpịachi osisi nwere eriri dabara na igbe nchekwa nduku gị. Site na usoro tupu germination, ihe dị ka kilogram 1000 nke poteto mkpụrụ nwere ike itinye n'ime igbe.
Usoro a na-eme ka a mata germination nke poteto ma gbochie condensation site n'ime igbe ahụ. ErFra VKS nwere ụdị "mmetụta chimni", ekele nke mkpụrụ nduku na igbe na-ekpo ọkụ nke ọma.
Usoro ErFra VKS na-eto eto dị mma maka igbe osisi nke gị (160 x 120 x 109 cm) Ha na-agbakọta. Mgbe ị na-ejuputa igbe ahụ, a pụrụ iji mkpuchi kpuchie usoro tupu germination. Sistemụ izizi nke ErFra VKS bụ foldable, na-eme ka ọ dị mfe ịchekwa.