The Bostwick Consistometer
We make the Bostwick Consistometer. The Bostwick is used extensively to measure the consistency of sauces and condiments. It has strong application in the quality control departments of ketchup and mustard producers. Results from a Bostwick Consistometer have been used for more than six decades to control the quality of many of the foods you use.
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Topics:
Viscosity,
Consistency,
Surface Tension Measurement,
Liquid Properties
The Bostwick Consistometer is used all over the World to check the quality of sauces and condiments. In our in-house training session we do blind product tests and clearly define the differences between brand of ketchup and mustard. This is a testament to the value placed on Bostwick Consistometer tests by the top food manufacturers.
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Topics:
Bostwick Consistometer,
Liquid Properties
At one end of the spectrum of the moisture world is the classic Speedy Moisture Tester where you use the reaction of water with calcium carbide to cause a mini explosion resulting in a moisture measurement reading. This method is used frequently for soils, concrete, and other like materials.
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Topics:
Moisture Sorption Isotherm,
Moisture Analysis,
Water Activity,
Karl Fischer,
Loss-On-Drying
Many accessing our web site ask questions such as:
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“How does water content affect water activity?”
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"How is water activity different from water content?”
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”Can I convert from moisture to water activity?”
I previously commented on water activity and now hope to clarify the differences between water activity and moisture content. Given that both of these measurements deal with water connected to a material, we must first understand of water content in a product.
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Topics:
Moisture Sorption Isotherm,
Moisture Analysis,
Water Activity,
moisture content,
moisture measurement,
water activity measurement,
water content measurement
Loss-On-Drying moisture analysis seemed like a simple process until, in a state of naïve bliss, I promised to look at evaporation, vapor pressure and bound water. While I was otherwise occupied with hese realities, I offered to enter the world of witchcraft and folklore; water activity.
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Topics:
Bound Moisture,
Moisture Sorption Isotherm,
Moisture Analysis,
Water Activity,
Loss-On-Drying
Do an internet search for the term “viscosity”, and you’ll find a variety of definitions for the word. For example:
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Topics:
Viscometers,
Viscosity
When people hear of viscosity for the first time, invariably they ask these three questions:
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Topics:
Newtonian Fluid,
Measure Viscosity,
Viscometers,
Viscosity,
Viscosity in Food
When our customers tell me about the different places where CENCO and CSC Digital Moisture balances are used it always interests me.
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Topics:
Moisture Analysis,
Moisture Testing,
Loss-On-Drying,
Moisture,
moisture content,
water content measurement
Water Activity
Water activity is the water in a material available to support the growth of microorganisms. Consequently, the measurement of water activity is important in areas such as food processing, pharmaceutical production, products affected by mold, and a host of products that change characteristics when exposed to moisture.
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Topics:
Water Activity,
stop mold,
chilled mirror,
aw
The most popular was to measure include:
- Drying the material and measure the weight loss
- Using a calibration and electronic instrument
- Using a titration method such as Karl Fischer
When using these processes, we take for granted that the results will be the product's actual moisture.
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Topics:
Evaporation,
Moisture Oven Test,
Infrared Moisture,
Moisture Analysis,
Moisture Testing,
Karl Fischer Titration,
Loss-On-Drying,
evaporator oven