Is it safe to deep fry two turkeys in the same oil for Thanksgiving

The other answers touch on the fact that its the release of water from the turkey that interacts with the oil, causes the oil to overflow, and then ignite the burner.

Generally, this happens pretty shortly after you put the turkey in (due do any moisture on the outside of the bird).

To do it safely don't bank on the fact that you've removed all the water - do two additional things:

1. Do it outside. In the event something bad happens, better to lose some grass on the lawn than your house. If you don't have space outside, you can always go to a public park or such. It may seem like a pain but turkey frying should not be done inside.

2. There's one absolutely surefire way to ensure than you don't catch the burner on fire by accident. Don't have it on!

   • Prep your turkey. Have it dry on the outside and completely thawed.
   • Heat your oil outside.
   • Turn the burner off
   • Lower the turkey into the hot oil
   • Wait 1-2 minutes or so, most of the initial contact between water and oil should over by now.
   • Turn the burner back on and cook the turkey.
   • Also make sure the burner is off while taking the turkey out, just to prevent any spills from becoming terrible.

@ChrisWalker, below in the comments, also provides a method for making sure you don't put too much oil in the pot and thus cause a spill over.

There's so much heat around a turkey deep-fryer I wouldn't see how light or medium snow would affect your cooking. Any snow is going to melt and probably evaporate before it comes into contact with any hot oil, and any that makes contact will be gone in a flash. I've barbequed in 20 below and in snow, all that it really means is that you need more heat.

My main concern would be wind, not snow. Wind will blow much of your heat away, and a really stiff wind could blow the whole rig over which would ruin your day. You want to set up the frying rig in a spot that is out of the wind. Light and medium snow really isn't an issue.