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SoCal Brewing Supply Rice Hulls for Mash Drainage : Top-Down View Showing Overall Grain Color

Rice Hulls for Mash Drainage

by SoCal Brewing Supply
$0.25 - $72.00
$0.25
$0.25 - $72.00
$0.25

We sell grain in one-ounce increments (16 oz = 1 lb) and by bulk bag. When adding grain, select the Recipe # (1, 2, or 3) using the radio buttons to assign it to a specific recipe. We’ll accurately weigh your order and combine all grains assigned to the same recipe into one labeled bag. If you’d like any grain kept separate, choose “Keep Separate” or note it in Cart Notes. Milling is available on request, simply check the appropriate checkbox below. View our Grain Ordering Guide here to learn more.
Grain Specifications:

  • Maltster: SoCal Brewing Supply

  • Grain Type: Flaked, Unmalted & Adjunct Grains

  • Lovibond:

  • Category: Rice

  • Notes:

Rice Hulls for Brewing

Rice hulls are a simple, flavor-neutral brewing aid that helps improve wort flow through the mash bed. They do not add fermentables, flavor, or color. Their job is purely mechanical: they create structure in the grain bed so runoff stays more open and less likely to compact.

They are especially helpful when you are brewing with high percentages of wheat, rye, oats, flaked grains, or finely crushed malt. If you have ever dealt with a slow runoff or a stuck sparge, rice hulls are one of the easiest fixes to keep on hand.

When to use rice hulls

  • Wheat beers, rye beers, and oat-heavy recipes
  • NEIPAs and hazy styles with a gummy grain bill
  • Adjunct-heavy mashes using flaked corn, flaked wheat, or flaked oats
  • Any system that tends to run slowly during lautering

What to expect

  • Better drainage: Helps keep the grain bed more open.
  • Less compaction: Useful for sticky or husk-poor grists.
  • No flavor impact: Rice hulls are used for process improvement only.

Brewer's tip

Mix rice hulls evenly into the dry grist before dough-in so they are distributed throughout the mash. They pair especially well with flaked oats, flaked corn, and flaked white wheat.

Frequently Asked Questions

Do you offer grain milling services?

Yes, we provide grain milling services free of charge before shipping. To have your grain milled, please select the "Yes, please mill my grain" option on each grain product before adding it to your cart. We use a high-end, 3-roller mill from Spike, set to a standard gap of 4.5, which achieves optimal cracking while minimizing excessive flour. If you prefer a coarser or finer mill, leave a note in the shopping cart, and we’ll adjust it to your preference.

If we notice that most grains were selected for milling but a few were not, we will assume it was an oversight and mill all of them. If your intention is different, please clarify in the shopping cart notes section.

How do you ensure accuracy when weighing grains?

We take great care to ensure that you receive the correct grains in the exact quantities needed for your recipe. Our multi-step process ensures precision, starting with weighing each grain type individually to an accuracy of 0.08 ounces. After that, we perform a final check by weighing the combined total to confirm accuracy. Your total grain weight will always be slightly over the ordered amount, never under, and always within an acceptable range for even the most detail-oriented brewers (like ourselves).

How are grains packaged before shipment?

We provide a convenient recipe-building tool to streamline the process for you, our team, and the environment. We encourage you to use this tool to build your recipes, ensuring you get exactly what you’ve ordered in the correct quantities. By combining all the grains for a single recipe into one bag, we help speed up your brew day, reduce packaging waste, and save time during order fulfillment. Rest assured, we prioritize accuracy when measuring and packing your grains.