This is very true. Assuming you live close enough to make the trip! By all means, the fresher the better. However, if you cannot make two trips then a day old, refrigerated sample is better than no sample. (as stated above)You can keep this one refrigerated as a last resort, but fresh is best. The ideal sample should still be steaming and day old just doesn't do it. If you can't get a fresh one before your appt tomorrow, just drop off a fresh one at a later date.