You can find lactose powder at the following retailers and specialized shops: :
: Offers Lactose Milk Sugar specifically for homebrewing stouts. where to buy milk sugar
: Carries Milk Sugar (Lactose) as a specialty ingredient. You can find lactose powder at the following
Based on common user feedback for high-quality lactose powder. : Sells lactose in various sizes (250g to
: Sells lactose in various sizes (250g to 1kg) for adding mouthfeel to beverages.
: A wholesaler for Organic Milk Sugar in bulk quantities. Sample Product Review
The powder is incredibly fine and dissolves easily in hot liquids without clumping. I've also used a small amount in my morning coffee to mimic the richness of cream without the extra fat. If you’re looking for a consistent, food-grade milk sugar for baking or brewing, this is a solid choice. Great value for the size of the container!" Lactose Milk Sugar - Mr. Beer