Bottle listings are full of words that sound like quality and mean very little. Here is what the ones on our pages actually mean, so you can judge any bottle, ours or anyone else's.
Total capacity vs marked capacity
Total capacity is how much liquid the bottle physically holds if you fill it to the brim. Marked capacity is the highest graduation printed on the side. They are often different, because a bottle filled to the brim cannot be shaken without wearing it.
Most brands quote the total, because it is the bigger number. Where ours differ, we state both. If a listing only ever gives you one number, assume it is the flattering one.
PP, polypropylene
The tougher everyday plastic. It survives drops that crack rigid plastics, and it is lighter. The trade is that it is opaque, so you cannot see the level, and it holds odour more readily than steel.
PC, polycarbonate
Rigid and glossy, and translucent, so you can see your mix and the level without opening the lid. It keeps its finish rather than going soft and scuffed. The trade is that rigid also means less forgiving of a hard drop onto concrete.
Stainless steel
Does not stain, cloud, crack, or hold odour. Plastic is porous at a scale you cannot see, which is why an old plastic shaker smells faintly of old milk no matter how well you wash it. Steel does not have that problem, which also makes it the only bottle you can put coffee in without ghost flavours afterwards.
The trade is weight, price, and being opaque.
Leak proof vs leak resistant
We do not use the phrase leak proof, and you should be sceptical when anyone does. A flip top holds when the lid is screwed on properly, the locking catch is engaged, and the bottle travels upright. Thrown sideways into a bag with the catch open, any bottle at any price will leak.
Leak resistant is the honest term. What matters is the quality of the seal and whether the catch actually locks, not the adjective on the listing.
Wire ball, mesh ball and spiral mixers
A wire or mesh ball is fine for standard whey with water. Thick powders such as casein or mass gainer defeat it, because the ball orbits the clumps rather than cutting them. A spiral or fin mixer cuts through instead. If you only drink whey with water, you do not need one and nobody should sell you one.
BPA free
A meaningful claim only when the manufacturer states it for that specific material. We list it where it applies to that product, and we leave it off where we do not have it in writing. An absence on our page means we could not confirm it, not that we are hiding something.
Plain or printed
Some of what we sell has print on the body, some is completely plain. Neither is better. It is on every listing under Specs so there is no surprise when the box arrives.