Jelly Bloom

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Price of the test:

$100 per analysis

Acceptable Matrices:

This method is specific for dried gelatins.

Unacceptable Matrices:

All materials other than dried gelatin.

Limit of Detection:


Sample Size Requirements:

20 grams


TA Texture Analyzer equipped a Bloom gel strength probe
Water baths at 10 and 65C
Balance, accurate to +/- 0.01g

Reportable Units:


Turn Around Time:

10 Business Days

Is Rush Available?


Method Reference:

AOAC method 948.21 "Jelly Strength of Gelatin"

Method Description:

Dry gelatin samples are suspended in water (6.67% solution). Solutions are heated to 62C to dissolve gelatin. Solutions are held at 10C overnight to form equilibrated gels. The gel firmness is measured with a TA Texture Analyzer using a Bloom gel strength probe.

Additional Information:

This test was originally done with a Bloom Gelometer. This was a cumbersome instrument requiring the handling of Hazardous lead shot. The test has been widely adapted to the Texture Analyzer, which is the instrument that we use.