In many years of testing, we have found the bees readily coat the Flow Frames with wax and fill them with nectar (which they turn into honey).
We have done many experiments using the Flow Frames in the middle of a standard super with wax foundation frames either side, along with trialling the Flow Super above and below a traditional super.
We have found that all colonies behave differently – some bees will show no preference while others will choose to fill the traditional frames before the Flow Frames.
However, once the Flow Frames have been used by the colony for the first time, they no longer show a preference either way. If your bees are taking a while to start filling your Flow Frames, please read this FAQ.