How Food Businesses Can Reduce Their Food Carbon Footprint

Gioia Zagni

Chief Science Officer, Klimato

This guide covers where food emissions concentrate, which reduction levers have the most impact, and how to build a reduction approach that holds up under scrutiny.

Where Food Emissions Concentrate and Why That Shapes the Reduction Strategy

Before deciding where to focus, it helps to understand the structure of food emissions. For most food operators—contract caterers, hotel groups, restaurants, food producers—80–95% of total climate impact sits in Scope 3 Category 1: the greenhouse gas emissions embedded in purchased ingredients.

That concentration has a direct implication for reduction strategy: actions that address Scope 1 and 2 emissions—kitchen electrification, renewable energy procurement, fleet efficiency—are worth pursuing, but they address a small fraction of total impact. The majority of the reduction opportunity sits in what is purchased, where it comes from, and how it is prepared.

Within Category 1, emissions are further concentrated in a small number of ingredient categories. In most food operations, five to ten ingredient types account for 70–80% of the total food carbon footprint. Identifying those ingredients and understanding what drives their footprint is the foundation of any effective reduction plan.

For a guide to understanding where your emissions sit before acting on them, see Food Carbon Footprint: Methods and Real-World Impact for Food Businesses.

The Four Primary Reduction Levers

1. Menu and Recipe Optimization

For food service operators, menu composition is the single most powerful emissions reduction lever. The difference between an animal protein-heavy menu and a plant protein-forward menu can represent a 40–60% difference in per-meal emissions—a shift that no operational efficiency measure comes close to matching.

That doesn't mean eliminating meat entirely. The most effective approach is identifying which specific dishes carry the most emissions weight and developing lower-emission alternatives that maintain quality and margin.

What this looks like in practice:
• Calculating the carbon footprint of each dish on the menu at ingredient level, not just the aggregate menu average
• Identifying the highest-emission dishes—typically those centered on beef, lamb, or hard cheese—and developing alternatives with equivalent or lower food cost
• Adjusting default options so that lower-emission choices are easier for diners to select, using behavioral evidence that contextualizing carbon impact shifts choices without restricting them
• Tracking the emissions impact of seasonal menu changes to maintain progress over time

Sodexo's restaurant at AstraZeneca used this approach—ingredient-level carbon data combined with targeted menu optimization—to reduce meal-related emissions by 66%. The specificity of the data is what made the reduction achievable rather than directional: they could see exactly which dishes to address and what the impact of each change would be before making it.

The key enabler is dish-level carbon footprint data. Menu optimization decisions made without that data are informed by cost and nutritional data but blind to emissions—which means the highest-impact changes are invisible.

2. Procurement and Sourcing Decisions

For the same ingredient, emissions can vary significantly by origin, farming system, and production method. Beef from a low-deforestation-risk, grass-fed system in one region can carry a meaningfully lower footprint than feedlot beef from a high-risk origin, often by 30–50%. The same principle applies to dairy, palm oil, cocoa, soy, and other high-impact commodity categories.

Procurement decisions that factor in carbon intensity alongside price and quality can meaningfully shift Category 1 emissions without changing menu composition at all.

What this looks like in practice:
• Comparing suppliers for high-emission ingredient categories on carbon intensity, not just price and quality
• Requesting origin and production method data from suppliers for FLAG-sensitive commodities—beef, soy, palm oil, cocoa—where the variation between sources is largest
• Preferring suppliers with verified product carbon footprint data for high-materiality ingredients
• Building carbon performance into supplier onboarding criteria and contract renewal discussions

For a practical guide to collecting the right data from food suppliers, see For more on what verified supplier data looks like and how to request it commercially, see What Procurement Teams Now Require from Food Suppliers on Sustainabilityand Scope 3 Supplier Engagement for Food Businesses

3. Waste Reduction

Food waste carries a double emissions cost: the carbon embedded in producing the food that's discarded, and the methane released when organic waste decomposes in landfill. For food service operators, where waste rates in buffet and à la carte formats can be significant, waste reduction is a meaningful Category 1 lever—particularly for high-emission ingredients where every kilogram wasted represents a large embedded footprint.

What this looks like in practice:
• Tracking waste by ingredient category to identify where the highest-emission items are being wasted most
• Adjusting portion sizes, prep quantities, and buffet management based on actual consumption data
• Redesigning menus to use high-emission ingredients more efficiently—for example, using secondary cuts and nose-to-tail preparation to reduce the footprint per unit of protein served
• Diverting organic waste from landfill to composting or anaerobic digestion, which reduces the methane impact of unavoidable waste

Waste reduction works best when combined with menu optimization: reducing the amount of high-emission ingredients purchased in the first place, then ensuring what is purchased is used efficiently.

4. Scope 1 and 2 Operational Improvements

While the majority of a food business's emissions sit in Scope 3, Scope 1 and 2 reductions are still part of a credible net zero strategy, and increasingly required by science-based target frameworks.

Scope 1 actions for food businesses:
• Transitioning gas kitchen equipment to electric induction, reducing direct combustion emissions from cooking
• Refrigerant management—leaks from commercial refrigeration contribute to Scope 1 disproportionately to their volume, given the high global warming potential of common refrigerants
• Fleet electrification for owned delivery or logistics vehicles

Scope 2 actions:
• Procuring renewable electricity through Power Purchase Agreements or renewable energy certificates, shifting the electricity emission factor toward zero
• Improving energy efficiency in kitchen and storage operations, reducing consumption before addressing the source

These actions are worth pursuing, particularly in parallel with Scope 3 work. The caution is prioritization: a business that focuses entirely on kitchen electrification while leaving a beef-heavy menu unchanged is addressing 5% of its footprint while ignoring 80%.

How to Sequence Your Reduction Efforts

The most common mistake in food carbon reduction planning is pursuing highly visible actions—packaging changes, energy efficiency, waste reduction—before addressing menu composition and procurement, which typically offer ten times the emissions impact.

A practical sequencing approach:

Step 1: Establish Ingredient-Level Baseline Data

You cannot identify reduction opportunities without knowing where emissions concentrate at ingredient level. A total footprint figure built on spend-based estimates doesn't tell you which dishes to address or which suppliers to engage. Activity-based, ingredient-level data is the prerequisite.

Step 2: Identify Your Top 10 Highest-Emission Dishes or Ingredient Categories

In most food operations, this analysis reveals that a small number of menu items or ingredient categories dominate the footprint. Focus initial reduction effort here—the impact per unit of effort is highest.

Step 3: Set a Reduction Target and Baseline Year

CSRD requires year-on-year comparison against a documented baseline. SBTi requires science-aligned reduction targets. Setting these before taking action means progress is measurable and credible. For food businesses with SBTi FLAG commitments, the target needs to cover agricultural supply chain emissions separately from fossil fuel emissions.

Step 4: Implement Menu and Procurement Changes

Make targeted menu changes and procurement shifts, then measure the emissions impact at ingredient level. The goal is to build a feedback loop where every menu update or supplier change produces a measurable delta in the footprint—so that reduction progress is visible and auditable, not asserted.

Step 5: Engage Suppliers on Reduction Over Time

For the highest-impact ingredient categories, supplier engagement on their own emissions reduction—farming system changes, origin shifts, deforestation-free sourcing commitments—is the longer-term lever. This takes time and purchasing power to execute but represents the deepest Category 1 reduction opportunity available.

Setting Credible Food Carbon Reduction Targets

For food businesses with formal sustainability commitments, reduction targets need to be quantified, time-bound, and connected to the baseline data that makes progress measurable.

SBTi FLAG requires food businesses to set near-term (5–10 year) reduction targets aligned with climate science, with FLAG emissions—forest, land, and agriculture—reported and targeted separately from fossil fuel emissions. Under the default sector pathway, this requires an absolute reduction of 30.3% in FLAG emissions by 2030. The precise reduction rate will depend on a company's base year and target year.

WRI Coolfood Pledge sets a collective target of a 25% absolute reduction in food-related GHG emissions by 2030 from a 2015 baseline, with a sub-target of a 38% reduction in emissions per plate—recognizing that as food service volumes grow, intensity reductions need to outpace absolute ones. Both metrics map directly to menu-level emission tracking.

CSRD doesn't mandate specific reduction targets but requires year-on-year tracking against a documented baseline and a credible transition plan for material emission categories. Category 1 is almost always material for food businesses under double materiality assessment.

For more on how these frameworks connect and what they require, see FLAG Emissions: A Complete Guide for Food Businesses.

What Makes Reduction Claims Credible

As scrutiny of sustainability claims increases—through CSRD verification requirements and the EU EmpCo Directive on green claims—the standard for credible food carbon reduction claims is rising.

A credible reduction claim requires:

Baseline specificity. The baseline year, scope, and methodology must be documented. Reductions measured against an undocumented baseline are not auditable.

Consistent methodology. Emission factors and calculation methods applied consistently across reporting periods.

Verified data. For CSRD, third-party verification of the underlying data and methodology is increasingly standard. Ingredient-level, activity-based data with a documented trail is what survives that scrutiny.

Absolute vs. intensity. A reduction in emissions per meal is meaningful, but SBTi and most science-based frameworks require absolute reductions—a lower total footprint, not a lower footprint per unit of output. Make clear which metric is being reported and use meals as more tangible tools to achieve a greater reduction.

FAQ About Reducing Food Carbon Footprint

Q: What is the fastest way to reduce a food carbon footprint?
A: Menu composition changes—specifically reducing the proportion of high-emission proteins like beef and lamb in favor of lower-emission alternatives—produce the largest and fastest emissions reductions available to food service operators. A single dish substitution across a high-volume menu can reduce meal-related emissions by 10–20% with no change to kitchen operations or energy infrastructure.

Q: Do food businesses need to measure emissions before reducing them?
A: Yes—but the measurement doesn't need to be perfect to start. An ingredient-level baseline calculation, even using secondary emission factors, identifies where emissions concentrate and which actions will have the most impact. Waiting for comprehensive primary supplier data before acting means delaying reduction efforts by months or years. Start with the best available data, improve it over time.

Q:  How much can food businesses realistically reduce their emissions?
A: The evidence from Klimato's customer base and from food systems research suggests that food service operators with active menu optimization programs can reduce meal-related emissions by 30–50% within two to three years, primarily through shifts in ingredient sourcing and menu composition. The WRI Coolfood target of a 38% reduction by 2030 is challenging but achievable for businesses that start measuring and acting now.

Q: Does switching to organic or local ingredients reduce emissions?
A: Not reliably. Organic certification doesn't guarantee lower emissions—organic beef still carries a significantly higher footprint than most plant proteins. Local sourcing reduces transport emissions, which are a relatively small share of most food products' total footprint; it doesn't address the agricultural production stage, which is typically the dominant driver. These factors can play a role in a reduction strategy but shouldn't substitute for ingredient-level carbon analysis.

Q: What is the difference between reducing food emissions and offsetting them?
A: Reducing food emissions means lowering the actual greenhouse gases produced through the food supply chain—by changing what is sourced, how it is produced, and how it is used. Offsetting means compensating for emissions through carbon removal or avoidance projects elsewhere. Most credible frameworks—SBTi, CSRD, and the Paris Agreement—require genuine emissions reductions as the primary strategy, with offsetting as a residual measure for emissions that cannot yet be eliminated. For food businesses, the reduction opportunity is large enough that offsetting should not be the primary approach.