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Mill for Mustard
By Moinhos Vieira – technical team
Moinhos Vieira manufactures industrial hammer mills for grinding mustard, serving everything from small operations to large-scale industrial processes.
Our equipment is successfully used for the particle size reduction of mustard, allowing different levels of grinding according to the needs of each process.
With extensive experience in industrial grinding, we carry out practical tests with mustard to evaluate equipment performance and help select the most suitable solution for each application.

Ask about grinding mustard
Answers based on the grinding tests Vieira has already run. Figures are estimates, confirmed in the free test with your sample or with our technical service team.
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Request free test / quoteHammer mill for mustard
Screens used
0.2 · 0.3 · 0.4 · 0.5 · 0.7 · 0.8 · 1 · 1.2 · 1.5 mm
Throughput (kg/h)
Measured in the tests
- MCS 28085 to 240 kg/hscreens 0.4 to 1.5 mm · measured in factory tests with customers' mustard
- MCS 35085 to 850 kg/hestimatescreens 0.4 to 1.2 mm · Values projected from factory tests.
- MCD 53074 to 362 kg/hscreens 0.3 to 0.7 mm · measured in factory tests with customers' mustard
- MCD 680B275 to 2,570 kg/hestimatescreens 0.4 to 1.2 mm · Values projected from factory tests.
- MCD 680A525 to 5,150 kg/hestimatescreens 0.4 to 1.2 mm · Values projected from factory tests.
- MCD 9501,000 to 10,300 kg/hestimatescreens 0.4 to 1.2 mm · Values projected from factory tests.
Figures from earlier tests with other samples: they vary with moisture, the required particle size and the product. Actual throughput is confirmed in the grinding test.
Technical notes
- High fat content: feed slowly and gradually, pausing so the air can clear the circuit; plan periodic cleaning stops (for build-up on the sides, remove the screen, close the mill and let the air carry the product to the cyclone).
- Screens below 0.7 mm require cleaning stops; smaller openings increase caking, and pure mustard on 0.4 mm was not feasible.
- A carrier such as starch made grinding on a 0.4 mm screen possible.
- To avoid clogging, the product should stay within 12% moisture and 8% oil.
Want to know how your product behaves? We run a free grinding test with your sample.
Request free test / quoteSee each model:
About mustard grinding
Mustard powder is finely ground and can come from three species of mustard plant, including yellow mustard, brown mustard and black mustard. In powder form, mustard has no smell when dry, but has a hot taste when mixed with water.
Moinhos Vieira has several customers who use its mills to grind mustard powder.
Mustard grinding test
Watch mustard being ground in our mills. The test pages are in Portuguese.
Moinho para Mostarda Moinho de Martelo Vieira
Other applications in spices and seasonings
See all processed products →Hammer mill guides
Hammer mill quote
Request a quote for your mill
Tell us what you need to grind and the desired capacity. With this information, our Technical Consulting and Sales team will recommend a model and prepare your quote.
- Model, screen and capacity recommended for your product
- Proposal prepared by our Technical Consulting and Sales team
- Free grinding test with your sample, if you need one
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We have received your request. Our team will contact you shortly. If you provided an email address, we will send you a confirmation with your request code.
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What happens next
- A Moinhos Vieira specialist reviews your request.
- We reply during business hours: Mon–Thu, 8am–5pm · Fri, 8am–4pm (Brazil time).
- Want to speed things up? Message us on WhatsApp with the code.






