I bought this meter and also ordered the storage and cleaning solution. Concerned that instructions state to keep the tip wet in storage but putting the storage solution in the tip and storing it upright and within 1-2 weeks it dries up and forms a white crystal substance on the probe and cap. I see other posts online of similar concerns. Not sure if this is normal or not. Other than that I did recalibrate it and re-store it. Will see what I get next brew day.