Know exactly which pressure to use for the best results of any dish, infusion or drink
Getting the pressure right is essential for achieving the desired texture and intensity of any dish, infusion or drink. The Smartwhip pressure regulator allows you to do precisely this – tailor the pressure to achieve the perfect consistency every time. Learn to determine exactly how much pressure each creation needs by understanding the relation between foam density and pressure.
There are three key factors to consider when determining how much pressure your dish, drink or infusion requires.
1. The Food Matrix
The food matrix considers the molecular relationship between the fats, proteins and sugars present in a recipe. Fat and protein are essential for stabilising a foam and ensuring the air bubbles remain intact. The higher the proportion of these components in the recipe, the more pressure is required to aerate them and achieve a stable foam structure.
2. The Siphon Contents
The amount of gas (in other words, pressure) required for each recipe is proportionate to the amount of free space in the siphon. The lower the contents, and the more free space there is in the chamber, the more nitrous oxide gas the recipe requires to fully penetrate the ingredients.
3. The Desired Level Of Aeration
As a general rule of thumb, the higher the pressure (in other words, the more gas you use), the firmer and more voluminous the resulting foam will be. It therefore depends on how voluminous and intense you want your recipe to become as the airier the foam is, the less concentrated the flavour is.
Fats
Nitrous oxide dissolves well in fatty substances, meaning your recipe requires fat for the gas to dissolve in and aerate it. The higher the fat content, the denser your liquid is and the more pressure it requires to become aerated.
Proteins
To stabilise the foam, you also need a protein, which will form a sort of net around the air bubbles and keep them from bursting.
Flavours
Each flavouring element in a recipe will all affect a foam’s structure differently, depending on their density and water content. Denser contents require more pressure while ingredients with a high water content might require more protein to froth up.
Foam pressure table
Rapid infusions and marinades pressure table
Proteins and binding agents that are suitable for producing foams
Smartwhip