Predict Restaurant Food Waste with Gemini AI and Google Sheets Reporting

This automation uses Gemini AI integrated with n8n to predict restaurant food waste and optimize ingredient usage. It automatically fetches historical sales data from Google Sheets, cleans and structures it and forecasts future demand with AI-driven predictions. The results are logged back to Google Sheets and emailed daily to managers and kitchen teams.

Designed for restaurant owners, chefs and managers, this workflow helps reduce food waste, manage inventory efficiently and make data-backed operational decisions.

1. Automated Forecasting

Automatically predicts daily food demand and usage trends using Gemini AI - no manual calculations needed.

2. Smart Waste Reduction

AI identifies overstock or understock risks, minimizing food waste and saving costs.

3. Centralized Data Management

All data is managed through Google Sheets, ensuring easy access and reporting.

4. Email Reporting

Daily forecast summaries are sent directly to key stakeholders for quick insights and planning.

5. Easy Integration & Scalability

Fully compatible with Google Sheets, Gmail and other restaurant management tools, allowing scalability across multiple outlets.

1. Daily Trigger

The workflow runs automatically each day to perform food waste prediction.

2. Fetch Historical Sales Data

Retrieves past food usage and sales data from Google Sheets to analyze consumption trends.

3. Format Data for AI Forecasting

Cleans, structures and formats raw data to prepare it for AI model input.

4. AI Forecast Generator (Gemini AI)

Uses Gemini AI to forecast food demand and recommend waste reduction strategies.

5. Clean & Structure AI Output

Processes and structures AI-generated results into a report-ready format.

6. Log Forecast to Google Sheets

Saves the AI forecast back into a specific Google Sheet for record-keeping and trend tracking.

7. Create Email Summary

Generates a concise, human-readable summary of the forecast for daily reporting.

8. Send Email Forecast Report

Automatically emails the forecast summary to kitchen staff, managers and decision-makers.

• Gemini AI: Forecasts food demand and predicts waste reduction strategies.

• Google Sheets: Stores sales data and forecast outputs.

• n8n: Orchestrates data flow, AI processing and automation logic.

• Gmail / Email API: Sends forecast reports to relevant stakeholders.

1. Data Fetching: Historical sales data is pulled from Google Sheets.

2. Data Preparation: Structured and cleaned for AI model input.

3. Forecasting: Gemini AI predicts upcoming food demand and identifies waste risks.

4. Result Structuring: AI output is parsed and formatted for human readability.

5. Logging: Results are appended to the forecast tracking Google Sheet.

6. Reporting: Email summary is automatically sent to management and staff.

A restaurant uses Google Sheets to track daily sales and inventory.

By deploying this workflow:

• Gemini AI forecasts the next day’s food requirements.

• Over-purchasing and under-utilization are prevented.

• Staff receive automated daily forecast emails for planning.

• The system continuously learns from data to improve prediction accuracy.

Example: “AI Forecast: Reduce vegetable orders by 12% tomorrow - predicted lower demand based on recent weekday trends.”

This enables proactive decision-making and significant food cost savings.

• Recognized among the Top 5 Global n8n Creators.
• Expertise in AI + automation for food tech, hospitality and SaaS platforms.
• Integration-ready with Ollama, Llama, Gmail, Notion, or Google Sheets.
• Scalable, low-latency architecture for instant AI recipe generation.

The AI Food Waste Forecasting Workflow by OneClick IT Consultancy transforms raw restaurant data into intelligent daily insights. It combines Gemini AI forecasting, Google Sheets data management and automated email reporting - reducing waste, saving costs and improving efficiency. Visit Official Workflow   

Ready to make your restaurant smarter and more sustainable? Contact Oneclick's AI Automation Team to schedule a free consultation.