48 mystery smells is a lot! Trust us! You'll notice after a couple of games (8-10 sniff sessions) that you'll get nose confusion. Take a break. This is a quick game you can come back to often, not intended for a full night of entertainment.
You'll also be surprised how the same smells will seem different the next day or the next week. Can you still guess right? Weird right, how your brain connects to your nose!