Bests & Worsts Reviews from Amazon

This thing is huge. It measures 13" long and 2" across at the bottom and 2.5" across at the top. It heats water (and is only to be used to heat water) between 68ºF to 203ºF (20ºC - 95ºC) (with 1ºF or 0.1ºC increments) for 1 minute to 72 hours. It's easy to set the time and temperature, and the heater circulates the water well, too. The only tricky part is getting enough air out of the cooking bag so it'll stay fully submerged. You can cook beef, pork, lamb, poultry, fish, shrimp, scallops, lobster tail, eggs, or some types of fruit (apple, pear, mango, plum, apricot, peach, nectarine, papaya, strawberries) or vegetables (potatoes, carrots, parsnips, beets, turnips, peas, asparagus, corn, broccoli, cauliflower, eggplant, onions, squash). The thinner the slices of food, the faster it'll cook, though we're still talking at least 45 minutes to 10 hours. You pre-heat the water using the immersion heater, put the food in a freezer bag, and immerse the bag in the heated water for several hours while the immersion heater keeps the temperature steady. You need to make sure the water doesn't all evaporate off or the heater will automatically turn off when the water goes below the minimum mark. If you need to add water, you need to heat it to about the right temperature before adding it to the pot. Never use deionized water. If the heater is touching the bottom of the pot, the water must be higher than the minimum mark at 2 9/10" and below the maximum mark at 4 10/16". The clamp to hold the heater to the pot is 5.5" from the bottom of the heater. This leaves 6-7.5" of the immersion heater towering above the pot. The power cord is about 36" long.