Already for some years now UK growers are happy working with coir briquettes of Dutch Plantin. It is easy putting the bricks of approx. 7 ltr into the pots at the field, expand them with a starter solution and then it is ready to plant. We put approx. 1850 pieces per pallet and with 20 pallets in a 40ft container you get coir to fill up 37.000 pots. If you use potted propagated plants (1,8-2 ltr) you just leave 1 pot empty every 3-4 pots. Easy, fast & cheap.