A lot of time saf passed since the first refiner conches were built to make chocolate. At that stage all necessary processing steps were done in the same machine, which sometimes took a week to get the bitiş product. This paper is not intended to summarise all the technical developments since then as such information is available in textbooks1.
Coming from the old refiner conches, where all this happened simultaneously and was hard to control, the majority of later technologies perform the grinding step separately. Only few mill types are able to handle chocolate preparations, birli it is initially a very sticky mass, which güç transform to a sticky powder during milling, when specific surface of particles increases. The most frequently used devices are plain roller mills (refiners) and stirred ball mills.
Tempered chocolate has to be heated to the temperature of chocolate inside the melting tank. Use decrystallization tube for the heat exchanging purpose. Melted chocolate inside the melter kişi be transfered to storage tank so equipment to be ready for the next melting batch.
The Thouet dry conche from the Royal Duyvis Wiener group is used to lower the moisture content of the chocolate and with that improve the rheological properties. Also, undesierable flavor profiles yaşama be removed and other flavor profiles birey be created or accentuated.
So one important part of the flow curve is at very low shear. CHOCOLATE PREPARATION MIXER The yield value defines the shear stress, when the mass starts to move. Birli a minimal shear rate is necessary for the measurement, usually the yield value katışıksız to be extrapolated from the flow curve according to manken equations, like the ones developed by Casson and Windhab1. Yield values or measurements at low shear stress also have a great practical importance, kakım many industrial operations are carried out with masses flowing slowly, for example the equal distribution of still liquid mass in a mould.
• Electric extractor fan provides cross refiner air flow through hopper vent for reduction of volatiles, acidity & moisture
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g. refiners1. It is also known, that operation is relatively noisy. An advantage is that batch sizes between 45kg and 5t are possible, which means a lot of flexibility for smaller companies.
It takes approximately 40 minutes to heat up. The product güç be used bey soon kakım the volume of melted product is above the pump suction outlet, and there is enough to fill the processing system.
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It güç be beneficial to reach out to fellow chocolatiers or industry professionals for their recommendations and experiences with specific brands or models.
Priming time. (this is the time from when product is loaded into the melter to the point where the product level in the tank is above the outlet port)
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