Solve anti-caking, flow and a variety of other manufacturing and/or production challenges

Replace Synthetics and Anti-Caking Agents

“The Synthetics Replacer,” Nu-FLOW® offers producers an option to replace synthetics or other anti-caking agents including SiO2  tri-calcium phosphate (or talc) with a natural or certified organic ingredient.
Using ‘rice concentrate’ on your label statement gives you a clean, consumer-friendly label while also solving anti-caking, flow and other manufacturing and/or production challenges.

Nu-FLOW is made from rice hulls that are sterilized and ground to a fine powder. The unique functionality comes from the fact that ‘Mother Nature’ causes the rice plant to take up silica from the soil and concentrate it in the hulls of the rice, thereby producing a natural alternative to silicon dioxide or other anti-caking/flow agents.






  • Spice Blendssupplements -Ribus
  • Spray Drying
  • Dry Blending
  • Tableting


  • Anti-Caking / Flow Aid
  • Diluent
  • Excipient


  • Improve processing flows
  • Achieve 95%+ organic levels
  • Clean label statements that replace synthetics with ‘rice concentrate’

Case Studies
Electron Microscope Analysis of Nu-FLOW
RIBUS’ Sales Boom as Clock Ticks for Silicon Dioxide Use in Organic Foods, Beverages, and Supplements

Data Summary Sheets
Fruit Puree

Review specifications, nutrition analysis and FAQs in the table below, or scroll to the bottom of the page for downloadable PDFs!

Q. What is it made from?
A. Rice hulls or rice husks, the outer most layer of a grain of rice.  It contains high levels of naturally occurring silica.

Q. What color is it?
A. Light tan.  Most spices and powders have some color.

Q. Does it have an odor/taste?
A. Limited to no odor and a neutral taste.

Q. How much silica does it contain?
A. 18-20% silica and about 70% fiber.

Q. What is the particle size?
A. The mean particle size is 40 micron.

Q. Is it patented?
A. The product is patent pending.

Q. Is it natural/organic?
A. Both types are available, it is US and EU certified organic.

Q. What is it used for?
A. Anti-caking agent or flow aid in virtually all systems, foods, and dietary supplements.

Q. What is the use rate to replace Silicon Dioxide?
A. Typically it is a one-to-one replacer.

Q. Can it be used in a spray dryer?
A. Yes, it can be used in various ways or combinations.
It can be added to the liquid and sent through the dryer (just like silicon dioxide).
It can be blended with the dried material as it comes off of the dryer.
Or a combination of the two methods above.

Q. Can I use it as a fiber source?
A. Yes, it is high in insoluble fiber.

Q. What are some of the more unique applications?
A. Oil absorption on macadamia nut meal to keep them from lumping.  Oil carrier for powder cake mixes.

Q. I read that silicon dioxide’s use in organic products is going to be changing, is that true?
A. Yes, on May 28, 2013 the USDA (USA organic regulators) announced a final rule restricting the future use of silicon dioxide (a synthetic) in organic products so long as “organic rice hulls” are commercially available.  RIBUS is happy to work with you or your organic certifier on the use of Nu-FLOW to replace silicon dioxide.