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We Mill Our Own Rice
Rice is milled and granulated in-house, giving us greater control over texture, consistency and quality.
Why Grindstone
We take the familiar foods people already love and rethink them with thoughtful ingredients, our own approach to rice milling, and a commitment to making great food right here in London, Ontario.

We start with foods people already know and love, then rethink how they’re made—from the ingredients we choose to the way we mill and blend our rice.
The result is a growing family of everyday favourites designed to be simple, versatile and delicious.
From how we mill our rice to where we make our products, we take a hands-on approach to the food we create.
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Rice is milled and granulated in-house, giving us greater control over texture, consistency and quality.
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Our foods are made in London, Ontario, Canada, with milling, blending and production under one roof.
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We focus on thoughtfully selected ingredients and 100% natural seasonings to create familiar flavours people love.
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Our dedicated production environment is designed for gluten-free production, with product-specific ingredients and dietary details clearly identified on each product.

Our process
Grindstone does not simply purchase pre-milled rice flour. We mill and granulate our rice in-house.
This hands-on approach lets us fine-tune texture and consistency from the start—and helps create the creamy texture that defines Grindstone hot rice cereal.
Signature ingredient
Historically known as forbidden rice, black rice is an ancient whole grain recognized for its naturally deep purple colour when cooked.
Grindstone blends black and white rice to create its signature purple rice, bringing an ancient grain into a familiar modern food experience.
Discover black rice →

Ingredient philosophy
Reinventing familiar food doesn’t have to mean making it complicated.
We focus on thoughtfully selected ingredients and 100% natural seasonings to create familiar flavours people already know and love. And because every product is different, you’ll always find the specific ingredient and dietary information on the product label.
London, Ontario
Milling, granulating, blending, seasoning and packaging all come together at our London, Ontario facility.
Keeping these core processes under one roof gives us greater involvement in every stage—from the rice we mill to the products we package.
Milling
Granulating
Blending
Seasoning
Packaging
Different Grindstone products are made for different needs. Look for dietary markers on individual product pages to quickly see which attributes apply.
Always check the product label for the most current ingredient and dietary information.
Soy Free
Wheat Free
Dairy Free
Gluten Free
Vegan
Nut Free
From breakfast to baking, discover familiar favourites reinvented the Grindstone way.
Straightforward answers about Grindstone’s foods, ingredients and process. Product labels remain the source of truth for product-specific ingredients and dietary attributes.
Grindstone Blends is a Canadian food brand that reinvents familiar everyday foods. Its products include cream of rice and hot rice cereal, versatile baking mixes, and cake in a cup, manufactured in London, Ontario.
Forbidden rice is a historical name for black rice, an ancient whole grain recognized for its naturally deep purple colour when cooked. Grindstone blends black and white rice to create its signature purple rice.
Gluten-free manufacturing is part of how Grindstone operates. Because formulations and claims may vary by product, check the current product page and label for product-specific gluten-free and allergen information.
Milling and granulating rice in-house gives Grindstone greater control over texture, consistency and quality. It also helps create the creamy texture of Grindstone hot rice cereal.
Grindstone Blends products are manufactured in London, Ontario, Canada.
Grindstone products are made for familiar food moments, including hot rice cereal for breakfast, versatile baking mixes, and cake in a cup. Follow the directions on the individual product and explore the recipe collection for more ideas.
Grindstone focuses on 100% natural seasonings and thoughtfully selected ingredients. For precise and current ingredient information, check the individual product label.
Discover familiar favourites, thoughtfully reinvented and made in London, Ontario.