BlenderBottle ProStak vs GoStak: Which Modular Storage System Fits Your Needs?

If you're serious about your fitness routine, you know the struggle of carrying multiple supplements separately. BlenderBottle's modular shaker systems solve this by integrating storage compartments directly into your bottle. The two main options are the ProStak and the GoStak. While they share the same modular concept, they differ in capacity, material, and intended use. This comparison will help you decide which one fits your needs.

Both systems allow you to stack storage jars beneath the main mixing chamber, so you can pre-portion powders, pills, or snacks. But the ProStak is built for heavy-duty use with larger compartments, while the GoStak is more compact and portable. Let's break down the key differences.

ProStak Overview: Maximum Storage Capacity

The ProStak is BlenderBottle's largest modular shaker. It features a 28-ounce mixing bottle made from durable Tritan plastic, with a patented mixing system that uses a wire whisk ball. Below the main bottle, you can attach up to three storage jars: two medium jars (2.5 oz each) and one large jar (5 oz). The large jar can hold a full serving of protein powder, while the medium jars are perfect for pre-workout, BCAAs, or pills.

The ProStak also includes a pill organizer that fits inside the lid, and the entire system is top-rack dishwasher safe. The wide mouth makes it easy to add ice cubes, and the leak-proof lid ensures no spills in your gym bag. For those who need to carry multiple supplements for a full day at the gym or work, the ProStak is the clear choice.

• Pro tip: Use the large jar for protein and the medium jars for pre-workout and BCAAs to have everything ready to mix on the go.

GoStak Overview: Compact and Portable

The GoStak is a lighter, more streamlined version of the modular system. It comes with a 20-ounce mixing bottle (also Tritan) and includes two storage jars: one medium (2.5 oz) and one small (1.5 oz). The small jar is ideal for a single dose of pre-workout or a few pills, while the medium jar can hold a smaller protein serving. The GoStak also features a pill organizer in the lid, similar to the ProStak.

The GoStak's smaller size makes it easier to fit into crowded gym bags or backpacks. It's also slightly lighter, which matters if you're carrying it for long periods. However, the reduced storage capacity means you'll need to plan your supplement portions more carefully. If you only need one or two supplements per workout, the GoStak may be sufficient.

• Pro tip: The GoStak is great for short trips to the gym or as a secondary shaker for travel.

Key Differences at a Glance

To help you decide, here's a side-by-side comparison of the two models:

• Bottle Capacity: ProStak 28 oz vs GoStak 20 oz
• Storage Jars: ProStak has 1 large (5 oz) + 2 medium (2.5 oz) vs GoStak has 1 medium (2.5 oz) + 1 small (1.5 oz)
• Pill Organizer: Both have a pill organizer in the lid
• Material: Both use Tritan plastic, but ProStak feels more robust
• Weight: ProStak is heavier due to larger jars and bottle
• Dishwasher Safe: Both are top-rack dishwasher safe

Which One Should You Choose?

Your choice depends on your supplement routine and portability needs. If you take multiple supplements daily and want to pre-portion everything for a full day, the ProStak is the better investment. Its larger jars can hold enough protein for two shakes, plus pre-workout and recovery aids. The ProStak is also a great option for those who like to have snacks like nuts or dried fruit on hand.

On the other hand, if you prefer a minimalist setup or only use one or two supplements per workout, the GoStak offers a more compact solution. It's easier to carry and still provides the convenience of modular storage. For example, you can store pre-workout in the small jar and protein in the medium jar, then mix your shake right after your workout.

• If you're still unsure, consider how many supplements you typically bring to the gym. If it's more than two, go with the ProStak.

Real-World Use Case: ProStak for Heavy Lifters

Imagine you're a dedicated lifter who uses protein, pre-workout, BCAAs, and creatine. The ProStak's large jar can hold a full scoop of protein (about 30g), while the medium jars can hold pre-workout and BCAAs. You can even use the third medium jar for creatine or a snack. The pill organizer in the lid can store fish oil or multivitamins. This system eliminates the need for multiple containers and saves space in your bag.

The ProStak's 28-ounce capacity also allows you to mix larger shakes, which is ideal for post-workout recovery when you need more fluid and calories. The mixing system works well with thicker shakes, and the leak-proof design gives you peace of mind.

Real-World Use Case: GoStak for Cardio and Travel

If you're a runner or prefer lighter gear, the GoStak's smaller profile is a game-changer. It fits easily in a running vest or small gym bag. You can fill the small jar with pre-workout powder and the medium jar with a protein sample. After your run, just add water to the 20-ounce bottle, shake, and you're done.

For travel, the GoStak is TSA-friendly (empty, of course) and won't take up much space in your luggage. You can pre-portion supplements for each day of your trip. While it doesn't hold as much as the ProStak, its convenience and portability make it a favorite among minimalist athletes.

Accessories and Compatibility

Both systems are compatible with BlenderBottle's range of accessories. You can purchase additional storage jars separately if you need more compartments. For example, the ProStak can be expanded with extra medium or large jars, while the GoStak can be paired with extra small or medium jars. Replacement parts like lids and mixing balls are also available.

If you already own a BlenderBottle Classic or Strada, note that the modular jars from ProStak and GoStak are not interchangeable with those bottles. However, the mixing balls and lids from other BlenderBottle models may fit, but always check compatibility.

Cleaning and Maintenance

Both the ProStak and GoStak are easy to clean. All components are top-rack dishwasher safe, but hand washing with warm soapy water is recommended to prolong the life of the silicone seals. The storage jars have wide mouths, making it easy to scrub out residue. The mixing ball (wire whisk) should be rinsed immediately after use to prevent powder buildup.

For deeper cleaning, you can use BlenderBottle's Bottle Cleaning Tablets, which are designed to remove odors and stains. Simply drop one tablet in warm water and let it soak for 30 minutes. This is especially useful if you use the jars for strong-smelling supplements like fish oil or pre-workout.

Whether you choose the ProStak or GoStak, both systems offer the convenience of modular storage in a single shaker. The ProStak is ideal for heavy supplement users who need maximum capacity, while the GoStak suits those who prioritize portability. Whichever you pick, you'll enjoy the convenience of having your supplements organized and ready to mix. Explore the ProStak and GoStak options to find the perfect fit for your routine.