1 The next step is to rehydrate the nematodes, for which you will require at least 1-2 gallons of water. 2  Empty the bucket of nematodes into the water sprayer and allow them to soak well for an hour.
Once it is cool to the touch, ladle it in to the freezer containers, leaving 1/2 inch head space in each one. Seal the containers and place in the freezer. Store the apple butter safely in the freezer for several months, up to a year. Once it is thawed out, keep it in the refrigerator for up to three weeks. It will probably be OK after three weeks, but it is best to discard it if it has not been used after a month.
Don't forget to freeze butter you don't need! In the fridge, butter will last for about four months, or about a month past the sell by date on the package. But it can last up to a year in the freezer if it's fresh. So buy all the glorious, high-quality European sticks you want, and keep them nice and chilly to enjoy for months to come.