I just spilled water in my MBP, came here to figure out how long to leave it in rice, and was highly amused by the vehemence and vitriol.
Look, everyone in this thread is right. All of this depends a lot on climate.
If you live somewhere humid, the water won't evaporate quickly enough for the rice to absorb it (the rice will just absorb ambient moisture from the air, of which you have an unlimited supply) and a dehumidifier is likely to help more by making the air dry enough for the water to evaporate (plus you're more likely to have one on hand).
If you live in a dry climate, you probably don't have a dehumidifier, and besides, the water will evaporate quickly anyway in dry air, and the rice will help maintain dry air around the machine to accelerate the evaporation.
I'm sure that humidity also affects how long you should let it dry. In a warm, dry climate, a bowl of water left on the kitchen counter will evaporate in a day; in a cool, wet one, it can take a week.
I live in a climate that at the current time of year is cold, and seems to be moderately humid this week. I don't have a dehumidifier, or know anyone who does, but it took 10 minutes to acquire enough rice to bury ten laptops in. Plus a friend lent me a giant packet of silica gel (win!). I'm going to cross my fingers and leave it for four days, maybe near a radiator, since heat encourages evaporation. I'll let you know how it fares - wish me luck!
Look, everyone in this thread is right. All of this depends a lot on climate.
If you live somewhere humid, the water won't evaporate quickly enough for the rice to absorb it (the rice will just absorb ambient moisture from the air, of which you have an unlimited supply) and a dehumidifier is likely to help more by making the air dry enough for the water to evaporate (plus you're more likely to have one on hand).
If you live in a dry climate, you probably don't have a dehumidifier, and besides, the water will evaporate quickly anyway in dry air, and the rice will help maintain dry air around the machine to accelerate the evaporation.
I'm sure that humidity also affects how long you should let it dry. In a warm, dry climate, a bowl of water left on the kitchen counter will evaporate in a day; in a cool, wet one, it can take a week.
I live in a climate that at the current time of year is cold, and seems to be moderately humid this week. I don't have a dehumidifier, or know anyone who does, but it took 10 minutes to acquire enough rice to bury ten laptops in. Plus a friend lent me a giant packet of silica gel (win!). I'm going to cross my fingers and leave it for four days, maybe near a radiator, since heat encourages evaporation. I'll let you know how it fares - wish me luck!