If you've spotted our 20kg bulk WPC and WPI bags, or 25kg Buttermilk Powder, and wondered who that's actually for, the short answer is anyone using serious volume on a regular basis. These bulk formats exist for gyms, cafes, meal prep businesses, personal trainers supplying clients, and households where multiple people are going through protein fast enough that buying tub after tub stops making sense.

The main reason bulk bags exist at all comes down to cost per serve. Packaging, labelling and smaller retail tubs all add cost that gets passed on in the price, so when you strip that back to a plain bulk bag, the price per kilo drops noticeably. For a business using protein as an ingredient, in shakes they sell, in baking, in recipes, that saving adds up fast, and it's the same principle behind why we offer Buttermilk Powder in a 25kg bulk option, since it's commonly used as a baking or food manufacturing ingredient rather than scooped into a shaker.

Bulk formats also cut down on how often you're reordering and repackaging. Instead of opening a new tub every few days and dealing with the packaging waste that comes with it, one bulk bag can last a business or a busy household weeks or months, depending on turnover. For a gym or PT running protein shakes for clients daily, that means less time spent on stock admin and less cardboard and plastic going through the bin.

It's worth being realistic about who bulk bags suit, though. If you're a single person having one shake a day, a 20kg bag of WPC or WPI is going to last a very long time, and protein powder does have a shelf life once opened, even when stored properly. Bulk only makes sense once your usage genuinely matches the volume, otherwise you're better off with standard tubs and buying more often.

Storage is the other practical factor. A 20kg or 25kg bag takes up real space, and once it's opened it needs to be resealed properly and kept somewhere cool and dry, away from direct sunlight and moisture, the same rules that apply to any of our powders, just at a larger scale. Businesses using bulk bags regularly tend to decant into smaller airtight containers for daily use, which also cuts down on how often the main bag is opened and exposed to air.

If you're weighing up whether bulk makes sense for you, look honestly at how much you or your business goes through in a month. If a standard tub is disappearing every week or two, or you're already buying multiple tubs at a time, a bulk bag is almost always going to save you money and hassle. If not, sticking with regular sizes and buying fresh more often is still the smarter option.