1-It's hard to get the top off the juice concentrate! A screw off top would be better, I sprayed a little bit in my kitchen as it finally just popped off.
I got this. It also helps with shrinking a seal over a bottle using hot water.
http://labelpeelers.com/pvc-shrink-tool-bag-decapper-combo/
2-How does one make hot water to dissolve the bentonite? And is there a standard as to what "hot" is?
I put some of the juice in the pail, so the heat doesn't hurt the pail.
I sterilize a small pot (2 cup pot), and an immersion blender
boil about 1 cup of water, remove from heat
while stirring with the immersion blender, sprinkle bentonite into the pot
Pour solution into the pail, and stir in with the immersion blender.
Same question for "warm". Since you have to have the right combo of hot, warm and room temperature to get it between 72 and 75.
Transfer the rest of the juice into the pail.
Sanitize a funnel, and a larger pot (about 2 quarts).
heat water up to about 100 degrees.
Pour about 1 quart into the bag
rinse bag, and pour into pail.
Repeat.
Stir the juice to equalize the temp
Take a temp. Mine is usually in the 60's.
Heat a pot of water up to 120 degrees
Pour into pail. stir to equalize the temp. Repeat until temp is just at the bottom of the range to pitch yeast.
Heat up rest of the water to 75 degrees, or whatever is in the middle of your temp range.
After you get the hang of it, you can heat up water to 120 degrees, and mix that with faucet/room temp water. It is easier to heat up small batches to 120 degrees than to heat up everything to 75 degrees.