Guidance for Food manufacturing
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Planning your recycling needs in the food and drinks manufacturing sector

How to conduct a waste audit for the food and drinks manufacturing sector

Estimated reading time: 5 min

The idea of a waste audit is to identify where waste is generated in your business. With this knowledge, you can take steps to reduce it and ensure you comply with legislation concerning waste handling, storage and disposal.

Undertaking a waste audit will help you to establish:

  • What types of waste your business produces

  • Where waste is generated in your business – whether for the whole building or for each department or process area

  • Who generates waste in your business

Once complete, you can then develop a waste action plan with your priorities and targets for reusing, recycling and recovering your waste.

Good to know

Your existing waste or recycling , if you have one, may be better placed to undertake the audit process for you – especially if your waste may include items that could cause an injury, such as broken glass.

To conduct your waste audit, start by downloading the Waste Audit template.

You will need:

  • A tarpaulin or plastic sheet to tip waste out onto for sorting

  • Appropriate (PPE) as identified via a (to protect you and your clothes)

  • Containers for sorting the waste into

  • Weighing equipment

  • A pen to record your findings

  • Your waste audit template

1. Conduct a risk assessment

You should produce a risk assessment before undertaking a waste audit to ensure that you’ve considered and mitigated all risks, such as those entailed by manual handling. Make sure everyone is properly briefed on the task before starting the audit, including your Health and Safety officer or team if you have one.

If you don’t already have your own Risk Assessment template, the Health and Safety Executive (HSE) has one here together with examples of completed risk assessments for various activities and workplaces.

Take extra care if your waste is likely to contain , or potentially such as ABPs.

2. Collect your waste

Gather your waste, including general waste, all recyclables, kitchen or catering waste from canteens and staff break rooms, and waste from litterbins, if applicable. Keep these materials separate from each other during your audit. If you have one, turn off your food waste macerator and collect the food waste in a suitable container so you can weigh it.

3. Sorting

Tip the waste onto your tarpaulin or plastic sheet and sort it into different material types using your sorting containers. Use the waste audit template as a guide when deciding the number of different material types.

4. Measuring

Weigh each type of waste, remembering to deduct the weight of the container to arrive at the of the material.

5. Recording

Record the date, time and location of your audit and the weights of each material on your form.

6. Repeat twice

Where possible, it’s a good idea to repeat the audit (steps 2-5) twice more (three times altogether) and average your totals. This will provide a more accurate picture of the types and quantities of waste and recycling your business produces.

7. Calculate your results

Using the average net weight for each material, calculate your annual waste and recycling total, for example by multiplying by 52 if you have measured by the week.

Tips for carrying out your waste audit

  • Choose the right location and date(s) for your audit – the best time to undertake it will be the day before

  • Choose the right location and date(s) for your audit – the best time to undertake it will be the day before your waste is collected

  • Secure a suitable area for opening waste sacks and containers and sorting the waste materials

  • Keep your audit dates secret so that employees won’t change their behaviour and skew your results, but make sure that cleaners and facilities staff know so they don’t empty the bins.