Bostwick Consistometer 316 Food Grade Stainless Steel, ASTM F1080-93
The Bostwick Consistometer is the preferred choice for measuring consistency and flow rate in a variety of products. You can use the "Bostwick" on any viscous material such as sauces, salad dressings, paints, chemicals or cosmetics. The normal way to use the Consistometer is to measure the distance a sample flows in a given time interval.
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Specifications: 24cm
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Specifications: 30cm
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Specifications 50cm
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What's included
- An extra spirit level.
- Laminated instructions for use
- Test and Calibration Certificate
- Warranty Card
- Every unit has a serial number for full traceability.
- The consistency of a sample is measured by its resistance to flow under specific conditions, for a specified time.
- The Bostwick Consistometer is one of many instruments designed to make such measurements.
- The Consistometer is manufactured from stainless steel engraved with a series of precise
- Graduations at 0.5cm intervals. The sample is initially retained in a reservoir behind a spring loaded gate prior to testing
Applications:
- Food Processing
- Tomato Sauces + Others
- Preserves
- Fillings
- Soups
- Baby Foods
- Salad Dressings
Directions for use:
- A measured sample, usually 75 ml, is placed in the reservoir behind the gate.
- The gate is released, by pressing the lock release lever - the spring action ensures it opens instantaneously.
- As the liquid flows down the instrument its progress can be accurately measured using the graduated scale. By comparing the low rate to specified time periods the physical properties of the sample can be calculated
The CONSISTOMETER is an instrument used to determine the consistency of viscous materials by measuring the distance that the material flows under its own weight in a given time interval.
The instrument allows producers of such viscous products as jellies, preserves, sauces, etc, to predetermine formulas for their product and to standardize production lots.
Description
- The CONSISTOMETER is made of 316 Stainless Steel (Food Grade) stain-resistant material.
- It consists of a trough divided into two sections by a gate.
- The smaller section serves as a reservoir for the material to be tested.
- The larger has laser etched graduated measurement lines along the bottom in one centimetre divisions beginning at the gate.
- The gate is spring-operated and is held by a trigger that permits instantaneous release. In operation, the gate slides vertically in the grooves of two posts extending upward from the sides of the trough.
- The L-shaped trigger release hooks over the top of the gate to hold it in a closed position.
- Two levelling screws are located at the reservoir end of the trough and a circular spirit level is located at the other end of the trough.
- Is fully closed before filling the reservoir. The reservoir should always be filled completely to the top.
- A material should always be tested as quickly as possible after being removed from the constant temperature oven or bath to prevent any consistency changes caused by temperature change or exposure to air.
Maintenance
No maintenance should be necessary except occasional checking of the level, as explained. In Setting up the equipment, and cleaning of the troughs after each test.
Setting Up The Instrument
- Place the CONSISTOMETER on a LEVEL surface and adjust the levelling screws until the bubble in the circular level is centred. Check the level by placing another spirit level, on the bottom of the trough about midway along the length of the graduated section. The two levels should agree. If they do not, then proceed as follows:
- Adjust the levelling screws until the bubble of the level in the trough is centred. Then, bend the pointed, vertical lip of the CONSISTOMETER slightly until the two levels agree. Do not bend the horizontal part of the lip as this may prevent proper levelling of the instrument.
- Close the gate and hook the trigger release over the top.
- The material to be tested should be prepared by holding it at a constant temperature (usually 20 degrees C or 68 degrees F) for several hours to assure a uniform temperature throughout.
Operation
Fill the reservoir with the material to be tested and level off the top with a spatula or other straight-edge.
Press down on the trigger to open the gate and, at the same time, start a stopwatch. At the end of the selected time period, determine how far the material has flowed along the trough. Take the maximum reading at the centre of the trough and the minimum reading at the edge of the trough, and average the values. The average value is then compared against a previously determined standard.
When using the CONSISTOMETER, make certain that the gate is fully closed before filling the reservoir. The reservoir should always be filled completely to the top.
A material should always be tested as quickly as possible after being removed from the constant temperature oven or bath to prevent any consistency changes caused by temperature change or exposure to air