Is gelatine easy to use?

The Science of Blooming gelatine

Gelatine is actually easy to use!

Many people think that there is an art to using gelatine - but really it is more like a science, and by following a few simple rules you should get good results every time.

The first thing to know is that the word "Bloom" has two different meanings when it come to using gelatine.

• The first use of the word Bloom is in reference to the setting strength. The gelling strength is indicated by the figure given as its "Bloom" - starting at approx 90 Bloom (the weakest) to 300 Bloom (the strongest). This rather odd sounding unit was named after the man who developed the test for gelatine in 1925, a Mr Oscar T Bloom
• The second use of the word Bloom is what you need to do to prepare the powder for use. You will need to "Bloom" the gelatine before you use it. This is very easy.

Soak the gelatine for 30 min’s or more in 3 to 4 times its own weight of cold water or other liquid. Then heat this mixture up gently over some form of double boiler, or in the microwave, until it forms a clear liquid.

 Never allow the gelatine mixture to boil, or use boiling water, as this affects the setting strength.

You also need to be careful about what you are trying to gel, for example Lemon juice will require more gelatine to set than water will.

Some fruits  contain enyzmes called proteases which stops the gelatine from setting. These fruits need to be heated to inactivate the enyzmes. (eg pineapple, kiwi, figs, papaya, mango, guava and ginger root)