However, be careful with the Concentrace. Tap water is not allowed to have more than 0.01 parts per million of arsenic. The Concentrace instructions say to use a total of 40-80 drops per day, so letâs say you use 20 drops in a glass of water. That comes out to right around 0.01 parts per million of arsenic.
How to make Grilled Octopus: 1  Preheat grill to high. 2  Rub off red skin of the octopus. 3  Chop the octopus body into quarters leaving the legs whole.  Dip the pieces under cold 1  water. You can directly place the legs onto the grill.  Smear the grill top with grape seed 1  oil. Arrange the cut pieces on the grill and  cook.
Adjust the heat so that the liquid simmers slowly and cook until the octopus is tender, 30 to 90 minutes (check with the point of a sharp knife). Drain, discarding all the solids (except for the octopus). You can prepare this 24 hours in advance up to this point; cover and refrigerate the octopus. 2. Start a charcoal or wood fire or preheat a gas grill; the fire should be quite hot and the grill rack about 4 inches from the heat source. Cut the octopus into large serving pieces, brush it with half the olive oil, and sprinkle it with salt and pepper.