line-height:normal">mso-fareast-font-family:"Times New Roman"">@Louis-Frederick. This is what has worked every time. Place siphon in warm water bath. Take 500g of good qualitychocolate that has been chopped into small chunks into a metal or glass bowl with 65g hazelnut (my favorite) oil. Melt chocolate and oil via bain marie Pour the melted chocolate through a sieve into the warmed siphon. Screw on thetop and charge with 3 N2O charges (it also works with 2). Shake vigorously and discharge into thebottom of the vacuum container shown earlier stopping when the chocolate is ¼ way upthe container. Place lid securely on canistermso-fareast-font-family:"Times New Roman"">mso-fareast-font-family:"Times New Roman""> and connect hose from vacuum to cannister/container., . Begin vacuum. When the chocolatehas AT LEAST doubled in bulk, stop the vacuum by turning the power off.. Removethe hose attachment and carefully transfer the canister to the refrigerator or freezerto chill. turn vacuum back on and pressure should normalize through the hose.