Yes, we do quality control for products in the farms plus in the coolers at night time by means of samples.
iBuyFlowers works nearly with 40+ growers. In Latin America we do quality control at farm level and by samples in the coolers before product flies out to the USA. In the Netherlands we do quality control before the product is being packed. USA product is controlled by the farms itself on the day of packing.
See here a couple of quality check pictures: