Growing Leafy Sprouts Vertically
This method produces very pretty sprouts that green most evenly and whose hulls are removed most easily. They do not however, taste any better =:-}
The trick to doing this is to keep your sprouts in place (don't "jumble them up" as you do in a non-tray sprouter) from day 3 onward. It is easy to do if, when Rinsing, you use a sprayer (that attachment most sinks have - the one that pulls out and is gun-like or a faucet attachment that offers spraying when pulled down) instead of your faucet. We have grown many tons of leafy sprouts this way.
Here is a breakdown of the specifics (rinse numbers are based on 12 hour intervals - adjust as needed):
Rinse 5 and 6: Use sprayer with less water pressure. Rinse well - (which since you are using less water pressure means - for a longer time) but don't disturb the sprouts.
Rinse 7 - 10: Use sprayer. You can turn the water pressure back to high - your sprouts will not be easily moved (jumbled up) at this point and the higher water pressure feeds oxygen to your sprouts as well as "cleaning" them, which is a wonderful way to produce healthy long lasting sprouts. Rinse and Drain thoroughly.
Rinse 11 (if you need this many) or your last Rinse: Use Sprayer. Hold your tray at an angle (90° will work but less is OK too) and spray across the top of the sprouts to remove hulls. We call this SHAVING. It can be done at any Rinse or every Rinse - starting when hulls begin to be shed by the opening leaves. Rinse down into the sprouts too.
Vertical growing CAN be done without a sprayer too but it is more difficult. If you want to try all you have to do is regulate your water pressure - trying to keep your sprouts undisturbed during rinses 4 - 6.