Your bottle should make your water taste like water. If yesterday’s coffee is lingering or you have spotted a mark inside, start with a gentle wash. For anything that needs extra attention, white vinegar can help with smells, while baking soda offers a gentle way to work on surface residue.

Before you start: check your bottle’s care instructions

For PurePop, a gentle hand wash keeps the stainless interior, finish and lid ready for daily use. Follow the care instructions for your particular model.

PurePop’s Core Series care guidance specifies hand washing, with no bleach or abrasive scrubbers. It also says not to freeze or microwave the flask. For another bottle or lid, follow the instructions for that exact model.

What you’ll need

• Warm water and mild washing-up liquid
• A soft bottle brush that reaches the bottom without forcing it through the opening
• A small, soft brush for lid grooves
• A narrow straw brush, if your bottle has a straw
• A clean drying rack with room for the separate parts
• Ordinary white vinegar and baking soda (bicarbonate of soda), for an occasional deeper clean

How to clean the bottle, step by step

1. Empty it and separate the parts. Remove the lid and detachable straw. Remove seals only when they are designed to come out.
2. Wash the inside. Add warm water and a little washing-up liquid. Use the bottle brush to clean the base, walls, shoulder and neck. Brush gently around the interior to lift drink residue.
3. Clean the rim and outside. Pay attention to the threads where the lid screws on. Wipe the exterior with a soft cloth or sponge; treat a coated finish gently.
4. Wash the lid separately. Brush around the drinking opening, underside and grooves. If a seal is designed to come out, clean it and the channel it sits in. Keep track of how it fits so you can reassemble it correctly.
5. Clean the straw. If fitted, pass a suitable straw brush through the inside with warm soapy water. Wash the ends and rinse water through it. Keep fixed valves and mouthpieces assembled.
6. Rinse every part. Keep rinsing until the water runs clear and there are no suds. Check the lid grooves and straw too, rather than only rinsing the bottle body.
7. Leave it open to dry. Drain the bottle on a rack that lets air reach the opening. Lay out the lid, straw and removable seals separately. For storage, wait until everything is dry before putting the lid back on.

How often should you wash it?

A useful everyday habit is to wash your bottle and lid at the end of each day you use them. Rinse and wash promptly after coffee, tea, juice or flavoured drinks. It is a useful habit for your everyday coffee flask. Wash a new bottle before its first use, too.

Make the routine easy: empty your bottle when you get home, wash it with your other dishes and leave the parts on the rack overnight.

For lingering smells: white vinegar

A short white-vinegar soak can help freshen the stainless steel interior after a previous drink. Keep the soak inside the bottle and wash the lid and seals separately according to their care instructions.

1. Start with a clean bottle. Wash as usual and rinse out the washing-up liquid.
2. Make a diluted soak. Pour equal amounts of ordinary white vinegar and warm water into the bottle, covering the affected area. Leave it open for 15–30 minutes.
3. Brush and wash. Empty the solution, gently brush the interior, then wash with mild washing-up liquid.
4. Rinse and dry. Rinse thoroughly until the vinegar smell has gone. Leave the bottle open on your drying rack.

If the smell returns when you put the lid back on, give the lid, drinking opening and removable seal another look. Clean them separately, following their own care instructions. Keep the vinegar inside the bottle rather than soaking the coated exterior.

For surface stains and deposits: baking soda

Marks inside a bottle can be left by drinks or deposits on the surface. Brown or orange marks may also come from iron particles rather than corrosion of the bottle itself. A mark’s colour does not identify its cause; understanding stainless steel water bottle materials helps put these surface deposits in context.

For surface residue that needs more than a normal wash, try a soft paste of baking soda and water:

1. Mix the paste. Add a little warm water to baking soda until it is easy to spread. Use bicarbonate of soda, not baking powder.
2. Work gently on the mark. Apply it to the stainless steel interior with a soft cloth or bottle brush. Use light pressure, and keep it off the exterior coating.
3. Wash it away. Rinse out the paste, wash with mild washing-up liquid and rinse again.
4. Dry and check. Inspect the area once it is dry. If the deposit lifts away, there is no need to keep scrubbing.

Baking soda offers a gentle way to loosen surface residue, including some deposits left by drinks or iron particles. White, chalky scale needs a different approach. For a mark that persists or a surface that looks damaged, ask PurePop for advice.

What if it still smells or tastes strange?

Check the parts separately. Does the empty bottle smell, or does the smell become noticeable when the lid goes back on? That can help you decide where to spend more time cleaning.

A simple habit for your next refill

Clean the bottle, clean the parts you drink through, rinse well and give everything room to dry. Keeping a bottle brush beside the sink makes that routine much easier to stick to.

Unsure whether a seal should come out or how to clean your particular PurePop lid? Email info@purepop.co.za with your model name and a photo before trying to take it apart.