Guide · Kitchen

How to store used cooking oil in a commercial kitchen

A practical guide for restaurants, hotels and caterers: cooling, filtering, containers, where to keep them and what never to pour in.

5 min read · Updated November 2026 · SellMyOil team

Clean stainless steel commercial kitchen

Why storage matters

Good storage keeps your kitchen safe and clean, and it keeps your used oil in a condition that recyclers can use. It also makes every pickup faster, because the driver can measure and collect without waiting.

Step 1: let the oil cool

Never pour hot oil into a container. It can deform plastic, cause burns and create a fire risk. Let the oil cool in the fryer or in a metal pot before transferring it.

Step 2: strain it

Pour the oil through a mesh strainer or a filter cone to remove crumbs and food pieces. Cleaner oil is easier to recycle and keeps its value.

Step 3: use sealed containers

Use the sealed containers provided by your collector. Close the lid after each use to keep out water, dust and insects. Do not reuse containers that held chemicals or cleaning products.

Step 4: choose the right place

Keep containers in a dry, shaded area away from sinks, drains, cookers and walkways. A spot near the back door makes pickups quick and keeps the oil out of the way of your team.

SellMyOil provides sealed containers sized for your kitchen and swaps them at every pickup, free of charge.

What never goes in the container

Water, washing-up liquid, cleaning chemicals, motor oil, food scraps and plastic. Mixing other products into used cooking oil can make the whole batch unusable.

Spills and safety

Keep absorbent material such as sand or spill pads nearby, and clean small spills straight away to avoid slips. Train new staff on where the containers are and how to close them.

Never pour oil down the drain

Oil hardens in pipes as it cools and builds blockages over time. Collected oil is recycled instead, which is better for your building, your neighbours and the city's network.

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