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How do I open the Bag in Box?Updated 17 days ago

TL;DR: Stand the box upright, push the perforated panel on the front inward to reveal the black tap, peel the silver film off the tip, then pull the tap out to pour and push it back in to stop. Same mechanism on Universal Cleaner, Bathroom & Shower Cleaner, Kitchen Grease & Oil Cleaner, Dishwashing Liquid and Sensitive Laundry Liquid.


Read on ↓

Koh Universal Cleaner 2L bag-in-box with tap

How do I open the Bag in Box?

To open a Koh Bag in Box, stand it upright on a flat surface and find the perforated panel on the front of the box. Push that panel inward with your fingers and you will see a black tap behind the opening. Peel the silver stop film off the tip of the tap and discard it, as it seals the tap in transit. Pull the tap outward to start the flow and push it back in to stop. Rest the tap against the cardboard edge of the cut-out for stability and aim into your bottle. The bladder stays inside the box throughout, so there is nothing to remove under normal use.

1

Push the perforated panel on the front

Stand the box upright on a flat surface. Find the perforated cut-out on the front panel and press it inward with your fingers. A black tap sits behind it.

2

Peel the silver film off the tap

A small silver film seals the tip of the tap in transit. Peel it off and discard it. The tap will not flow until this is removed.

3

Pull to pour, push to stop

Pull the tap outward to start the flow and push it back in to stop. Rest it against the cardboard edge of the cut-out for stability and aim into your bottle. The bladder stays inside the box, so there is nothing to take out.


Which Koh products come in a Bag in Box?

Five Koh UK products come in the Bag in Box format: Universal Cleaner, Bathroom and Shower Cleaner, Kitchen Grease and Oil Cleaner, Dishwashing Liquid, and Sensitive Laundry Liquid. All five use the same pull and push tap behind a perforated front panel, so the instructions on this page apply to every one of them. Sensitive Laundry Sheets, Dishwashing Tabs and Loo Cleaner Tabs are not liquids and do not come in a Bag in Box, so there is no tap or panel to look for on those.

These five use the Bag in Box

The tap and panel work the same way on all five, so these steps apply whichever box you have opened.

Sheets and tabs are not Bag in Box

Sensitive Laundry Sheets, Dishwashing Tabs and Loo Cleaner Tabs are not liquids, so there is no tap or perforated panel to find on those packs.


There's no tap when I push the panel. What now?

If you push the perforated panel and there is no tap behind it, the bladder has been put into the box the wrong way round during manufacturing. To fix it, open the top of the box. Koh boxes are sealed with glue rather than tape, so pull the top flaps gently to separate the adhesive. Do not use scissors, box cutters or knives, because the bladder is plastic and can be pierced. Lift the bladder out, rotate it so the tap lines up with the perforated panel, and slide it back in. If you would rather not handle the bladder yourself, photograph the box and the bladder and contact the Koh-mmunity Support Team, and we will arrange a replacement.

The bladder is the wrong way round

No tap behind the panel means the bladder went into the box the wrong way round at manufacturing. It is fixable, and it is not how the box should have arrived.

Open the top by hand

Koh boxes are sealed with glue rather than tape, so pull the top flaps gently to separate the adhesive.

Rotate and reinsert

Lift the bladder out, turn it so the tap lines up with the perforated panel, and slide it back in. If you would rather not handle it, photograph the box and the bladder and get in touch, and we will arrange a replacement.

Contact support

⚠ No scissors, box cutters or knives

The bladder inside is plastic and a blade will pierce it. Open the top of the box with your hands only, and take the glued flaps slowly.


Koh Universal Cleaner 2L

Universal Cleaner

The 2L box, with the same pull and push tap behind the front panel.

Koh Sensitive Laundry Liquid 1.5L

Sensitive Laundry Liquid

The 1.5L box. Pour from the tap into Laundry Pump, then dose by pumps.

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Last reviewed: August 2026 · Koh UK

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