Where to Keep Your BAC Water: A Case With a Bay Sized for the Bottle

The BAC water bottle is the awkward item in every kit: too tall for vial slots and quick to tip over. Here's how to give it a proper home.

Updated October 7, 2026 · 4 min read

Short answer

Keep your BAC water bottle upright in its own bay of a hard case, right next to your vials, with its label intact and the date you opened it written on it, and store it as its label directs. You can design a case with a bay sized for your bottle in the PeptideCase™ builder.

Once you have a bottle of BAC water, the next question is where it lives. It's the odd one out in most kits: taller and wider than your vials, top-heavy enough to tip over, and too big for the vial slots in most ready-made cases. The best home for it is its own bay in a hard case, right next to your vials, sized for the bottle you actually use.

This guide covers how to keep a BAC water bottle upright, labeled and protected at home and when you travel, and how to design a case with a bay that fits it. For how the bottle should be stored and how long it can be used once opened, follow its label and your pharmacist or provider.

Give your BAC water bottle its own bay

Add your BAC water bottle, vials and supplies and the builder lays out a hard case where the bottle stands upright beside your vials.

Design your case →

Why the BAC water bottle is the awkward item

Vial cases are built around small vials. A BAC water bottle is a different shape, so it usually ends up in one of three bad places:

  • Loose on the fridge shelf or door, where it tips over, rolls and gets knocked by everything else.
  • Squeezed into a slot that's too small, or lying on its side across the top of the vials.
  • In a separate drawer, away from the rest of the kit, so it's never where you need it.

A bay sized for the bottle fixes all three: it stands upright, it can't tip, and it's always in the same place as your vials.

Keep the bottle labeled and in its original packaging

  • Leave the label on and readable. It carries the product name, lot number, expiration date and storage instructions. Keep it dry so it doesn't smudge or peel.
  • Write the date you opened it on a small piece of tape on the bottle, and follow the label or your pharmacist on how long an opened bottle can be used.
  • Check the cap seal and dates when a new bottle arrives, and keep unopened spares sealed until you need them.
  • Store it as its label directs. If your vials and the bottle have different storage instructions, follow each one; a second small case is better than guessing.

Where to keep the bottle at home

If the bottle lives with your vials in the fridge, keep the whole case on a middle shelf toward the back, never on the door, which is the warmest spot and swings with every opening. If the label says room temperature, keep it in your case or in a cool, dry cupboard, out of direct sun and away from the steamy bathroom.

Either way, the case is a protective organizer, not a cooler. It doesn't keep anything cold on its own; it keeps the bottle upright, protected and next to the rest of your kit.

Traveling with a BAC water bottle

  • Carry on, don't check. Keep the bottle with your vials in your carry-on, where it won't be thrown around.
  • Check the liquids rules. TSA has provisions for medically necessary liquids, but check the current TSA, airline and destination rules yourself before you fly, and tell the officer at screening.
  • Keep the label visible and carry any prescription or paperwork you have with your kit.
  • Use a cooler if your label calls for cold, with the closed case inside it and the ice pack wrapped in a cloth.
  • Bottle in its bay. A tall bottle loose in a bag knocks into everything, including glass vials. In its own bay, it can't.

For more, see the peptide travel checklist.

What to look for in a case that holds a BAC water bottle

  • A bay sized for your bottle. Bottles come in different sizes; the bay should fit yours snugly, not a generic shape.
  • Vials at a reachable height. When a tall bottle and short vials share a case, short vials can end up sunk deep in their slots. Look for a raised floor that brings vial tops up to the rim.
  • Separate spaces for vials, syringes and alcohol pads, so nothing rattles against the bottle.
  • A rigid shell and a latch, and a footprint that fits your fridge shelf and cooler bag.

Build your own custom case with a BAC water bay

The PeptideCase™ builder has a BAC water bottle item, so the bottle gets a proper home instead of a leftover corner. Start with an empty case, tap "Add item", add the BAC water bottle, then your 3 mL vials, 10 mL vials or peptide vials, syringes and alcohol pads (flat or standing), with how many of each. Every item becomes fitted pockets or an open bay sized for that many, and every space has a finger scoop.

The tallest item sets the case height, and shorter vials stand on a raised floor so every vial top lines up at the rim, easy to grab even next to the taller bottle. Auto-arrange finds the most compact layout, and the builder shows the case size with a top view, a lid view and a 3D view. Choose Black or RGB Metallic, Wide or Deep, one or two latches. It's printed to order in the US.

Design a case with a BAC water bay

Frequently asked questions

Where should I keep my BAC water bottle?

Upright, in its own space next to your vials, stored as its label directs. If it lives in the fridge, keep the case on a middle shelf toward the back, never on the door.

How long can I use a BAC water bottle after opening it?

Follow the bottle's label and your pharmacist or provider. Writing the date you opened it on the bottle makes that easy to track.

Can I fly with a BAC water bottle?

TSA has provisions for medically necessary liquids, but check the current TSA, airline and destination rules yourself, keep the bottle labeled, carry any paperwork you have, and tell the officer at screening.

Can I make my own custom case that fits a BAC water bottle?

Yes. The PeptideCase™ builder at /build has a BAC water bottle item. Add it with your vials and supplies, and the planner lays out a compact hard case with a bay for the bottle and fitted pockets for everything else.

Ready to design yours?

Add what you carry, pick a color and latch, and see your case in 3D. It's printed to order to fit exactly.

Design your case →

PeptideCase makes storage cases and caps only. We don't sell, recommend or give advice about any medication or compound. Follow the storage instructions on your product label or from your pharmacist or provider.